classes: Remove and sanitise import statements

Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>

31 files changed, 34 insertions, 147 deletions

diff --git a/meta/classes/autotools.bbclass b/meta/classes/autotools.bbclass
index 4946222f78..57a8b0ed18 100644
--- a/meta/classes/autotools.bbclass
+++ b/meta/classes/autotools.bbclass
@@ -2,8 +2,6 @@
 AUTOTOOLS_NATIVE_STAGE_INSTALL = "1"
 
 def autotools_dep_prepend(d):
-        import bb;
-
         if bb.data.getVar('INHIBIT_AUTOTOOLS_DEPS', d, 1):
                 return ''
 
@@ -29,7 +27,6 @@ acpaths = "default"
 EXTRA_AUTORECONF = "--exclude=autopoint"
 
 def autotools_set_crosscompiling(d):
-        import bb
         if not bb.data.inherits_class('native', d):
                 return " cross_compiling=yes"
         return ""
diff --git a/meta/classes/binconfig.bbclass b/meta/classes/binconfig.bbclass
index 31e5cc5172..73ca4d6219 100644
--- a/meta/classes/binconfig.bbclass
+++ b/meta/classes/binconfig.bbclass
@@ -1,6 +1,5 @@
 # The namespaces can clash here hence the two step replace
 def get_binconfig_mangle(d):
-        import bb.data
         s = "-e ''"
         if not bb.data.inherits_class('native', d):
                 optional_quote = r"\(\"\?\)"
diff --git a/meta/classes/cpan-base.bbclass b/meta/classes/cpan-base.bbclass
index cc0d11e515..919a9b06a5 100644
--- a/meta/classes/cpan-base.bbclass
+++ b/meta/classes/cpan-base.bbclass
@@ -9,7 +9,7 @@ RDEPENDS  += "${@["perl", ""][(bb.data.inherits_class('native', d))]}"
 
 # Determine the staged version of perl from the perl configuration file
 def get_perl_version(d):
-        import os, bb, re
+        import re
         cfg = bb.data.expand('${STAGING_DIR}/${HOST_SYS}/perl/config.sh', d)
         try:
                 f = open(cfg, 'r')
@@ -33,7 +33,6 @@ def is_new_perl(d):
 
 # Determine where the library directories are
 def perl_get_libdirs(d):
-        import bb
         libdir = bb.data.getVar('libdir', d, 1)
         if is_new_perl(d) == "yes":
                 libdirs = libdir + '/perl5'
@@ -42,7 +41,6 @@ def perl_get_libdirs(d):
         return libdirs
 
 def is_target(d):
-    import bb
     if not bb.data.inherits_class('native', d):
         return "yes"
     return "no"
diff --git a/meta/classes/cpan_build.bbclass b/meta/classes/cpan_build.bbclass
index 4aff7c8047..9cfe72bcb7 100644
--- a/meta/classes/cpan_build.bbclass
+++ b/meta/classes/cpan_build.bbclass
@@ -10,7 +10,6 @@ inherit cpan-base
 # libmodule-build-perl)
 #
 def cpan_build_dep_prepend(d):
-        import bb;
         if bb.data.getVar('CPAN_BUILD_DEPS', d, 1):
                 return ''
         pn = bb.data.getVar('PN', d, 1)
diff --git a/meta/classes/distutils-base.bbclass b/meta/classes/distutils-base.bbclass
index 5150be76b9..5d6d9981e0 100644
--- a/meta/classes/distutils-base.bbclass
+++ b/meta/classes/distutils-base.bbclass
@@ -3,7 +3,6 @@ DEPENDS  += "${@["python-native python", ""][(bb.data.getVar('PACKAGES', d, 1) =
 RDEPENDS += "python-core"
 
 def python_dir(d):
-        import os, bb
         staging_incdir = bb.data.getVar( "STAGING_INCDIR", d, 1 )
         if os.path.exists( "%s/python2.5" % staging_incdir ): return "python2.5"
         if os.path.exists( "%s/python2.4" % staging_incdir ): return "python2.4"
diff --git a/meta/classes/gettext.bbclass b/meta/classes/gettext.bbclass
index a1e00e72c1..0b69fa9392 100644
--- a/meta/classes/gettext.bbclass
+++ b/meta/classes/gettext.bbclass
@@ -1,5 +1,4 @@
 def gettext_after_parse(d):
-    import bb
     # Remove the NLS bits if USE_NLS is no.
     if bb.data.getVar('USE_NLS', d, 1) == 'no':
         cfg = oe_filter_out('^--(dis|en)able-nls$', bb.data.getVar('EXTRA_OECONF', d, 1) or "", d)
diff --git a/meta/classes/icecc.bbclass b/meta/classes/icecc.bbclass
index 56cbd6444f..724074231d 100644
--- a/meta/classes/icecc.bbclass
+++ b/meta/classes/icecc.bbclass
@@ -33,7 +33,6 @@ def icc_determine_gcc_version(gcc):
 
     'i686-apple-darwin8-gcc-4.0.1 (GCC) 4.0.1 (Apple Computer, Inc. build 5363)'
     """
-    import os
     return os.popen("%s --version" % gcc ).readline().split()[2]
 
 def create_cross_env(bb,d):
@@ -47,7 +46,7 @@ def create_cross_env(bb,d):
     if len(prefix) == 0:
         return ""
 
-    import tarfile, socket, time, os
+    import tarfile, socket, time
     ice_dir = bb.data.expand('${CROSS_DIR}', d)
     prefix  = bb.data.expand('${HOST_PREFIX}' , d)
     distro  = bb.data.expand('${DISTRO}', d)
@@ -96,7 +95,7 @@ def create_cross_env(bb,d):
 
 def create_native_env(bb,d):
 
-    import tarfile, socket, time, os
+    import tarfile, socket, time
     ice_dir = bb.data.expand('${CROSS_DIR}', d)
     prefix  = bb.data.expand('${HOST_PREFIX}' , d)
     distro  = bb.data.expand('${DISTRO}', d)
@@ -137,7 +136,7 @@ def create_native_env(bb,d):
 
 def create_cross_kernel_env(bb,d):
 
-    import tarfile, socket, time, os
+    import tarfile, socket, time
     ice_dir = bb.data.expand('${CROSS_DIR}', d)
     prefix  = bb.data.expand('${HOST_PREFIX}' , d)
     distro  = bb.data.expand('${DISTRO}', d)
@@ -204,8 +203,6 @@ def create_path(compilers, type, bb, d):
     """
     Create Symlinks for the icecc in the staging directory
     """
-    import os
-
     staging = os.path.join(bb.data.expand('${STAGING_DIR}', d), "ice", type)
 
     #check if the icecc path is set by the user
diff --git a/meta/classes/image.bbclass b/meta/classes/image.bbclass
index 6b0a14d9ac..c5a2dd2c50 100644
--- a/meta/classes/image.bbclass
+++ b/meta/classes/image.bbclass
@@ -26,8 +26,6 @@ PACKAGE_ARCH = "${MACHINE_ARCH}"
 do_rootfs[depends] += "makedevs-native:do_populate_staging fakeroot-native:do_populate_staging ldconfig-native:do_populate_staging"
 
 python () {
-    import bb
-
     deps = bb.data.getVarFlag('do_rootfs', 'depends', d) or ""
     for type in (bb.data.getVar('IMAGE_FSTYPES', d, True) or "").split():
         for dep in ((bb.data.getVar('IMAGE_DEPENDS_%s' % type, d) or "").split() or []):
@@ -49,7 +47,6 @@ python () {
 # is searched for in the BBPATH (same as the old version.)
 #
 def get_devtable_list(d):
-    import bb
     devtable = bb.data.getVar('IMAGE_DEVICE_TABLE', d, 1)
     if devtable != None:
         return devtable
@@ -62,7 +59,6 @@ def get_devtable_list(d):
     return str
 
 def get_imagecmds(d):
-    import bb
     cmds = "\n"
     old_overrides = bb.data.getVar('OVERRIDES', d, 0)
     for type in bb.data.getVar('IMAGE_FSTYPES', d, True).split():
diff --git a/meta/classes/insane.bbclass b/meta/classes/insane.bbclass
index 56d6a0b887..4b993b55d4 100644
--- a/meta/classes/insane.bbclass
+++ b/meta/classes/insane.bbclass
@@ -169,7 +169,6 @@ def package_qa_get_elf(path, bits32):
 
 def package_qa_clean_path(path,d):
     """ Remove the common prefix from the path. In this case it is the TMPDIR"""
-    import bb
     return path.replace(bb.data.getVar('TMPDIR',d,True),"")
 
 def package_qa_make_fatal_error(error_class, name, path,d):
@@ -184,7 +183,6 @@ def package_qa_write_error(error_class, name, path, d):
     """
     Log the error
     """
-    import bb, os
 
     ERROR_NAMES =[
         "non dev contains .so",
@@ -214,7 +212,6 @@ def package_qa_write_error(error_class, name, path, d):
         f.close()
 
 def package_qa_handle_error(error_class, error_msg, name, path, d):
-    import bb
     fatal = package_qa_make_fatal_error(error_class, name, path, d)
     if fatal:
         bb.error("QA Issue: %s" % error_msg)
@@ -229,7 +226,6 @@ def package_qa_check_rpath(file,name,d):
     """
     Check for dangerous RPATHs
     """
-    import bb, os
     sane = True
     scanelf = os.path.join(bb.data.getVar('STAGING_BINDIR_NATIVE',d,True),'scanelf')
     bad_dir = bb.data.getVar('TMPDIR', d, True) + "/work"
@@ -255,7 +251,6 @@ def package_qa_check_devdbg(path, name,d):
     non dev packages containing
     """
 
-    import bb, os
     sane = True
 
     if not "-dev" in name:
@@ -283,7 +278,6 @@ def package_qa_check_arch(path,name,d):
     """
     Check if archs are compatible
     """
-    import bb, os
     sane = True
     target_os   = bb.data.getVar('TARGET_OS',   d, True)
     target_arch = bb.data.getVar('TARGET_ARCH', d, True)
@@ -322,7 +316,6 @@ def package_qa_check_desktop(path, name, d):
     """
     Run all desktop files through desktop-file-validate.
     """
-    import bb, os
     sane = True
     if path.endswith(".desktop"):
         desktop_file_validate = os.path.join(bb.data.getVar('STAGING_BINDIR_NATIVE',d,True),'desktop-file-validate')
@@ -337,7 +330,6 @@ def package_qa_check_buildpaths(path, name, d):
     """
     Check for build paths inside target files and error if not found in the whitelist
     """
-    import bb, os
     sane = True
 
     # Ignore .debug files, not interesting
@@ -364,7 +356,6 @@ def package_qa_check_staged(path,d):
         to find the one responsible for the errors easily even
         if we look at every .pc and .la file
     """
-    import os, bb
 
     sane = True
     tmpdir = bb.data.getVar('TMPDIR', d, True)
@@ -402,7 +393,6 @@ def package_qa_check_staged(path,d):
 
 # Walk over all files in a directory and call func
 def package_qa_walk(path, funcs, package,d):
-    import os
     sane = True
 
     for root, dirs, files in os.walk(path):
@@ -415,7 +405,6 @@ def package_qa_walk(path, funcs, package,d):
     return sane
 
 def package_qa_check_rdepends(pkg, workdir, d):
-    import bb
     sane = True
     if not "-dbg" in pkg and not "task-" in pkg and not "-image" in pkg:
         # Copied from package_ipk.bbclass
@@ -496,7 +485,6 @@ python do_qa_staging() {
 addtask qa_configure after do_configure before do_compile
 python do_qa_configure() {
     bb.note("Checking sanity of the config.log file")
-    import os
     for root, dirs, files in os.walk(bb.data.getVar('WORKDIR', d, True)):
         statement = "grep 'CROSS COMPILE Badness:' %s > /dev/null" % \
                     os.path.join(root,"config.log")
diff --git a/meta/classes/kernel-arch.bbclass b/meta/classes/kernel-arch.bbclass
index 2ce0f9727d..35c26b89ff 100644
--- a/meta/classes/kernel-arch.bbclass
+++ b/meta/classes/kernel-arch.bbclass
@@ -15,7 +15,7 @@ valid_archs = "alpha cris ia64 \
                avr32 blackfin"
 
 def map_kernel_arch(a, d):
-        import bb, re
+        import re
 
         valid_archs = bb.data.getVar('valid_archs', d, 1).split()
 
diff --git a/meta/classes/kernel.bbclass b/meta/classes/kernel.bbclass
index b2266bee5d..74ec7d56b1 100644
--- a/meta/classes/kernel.bbclass
+++ b/meta/classes/kernel.bbclass
@@ -9,9 +9,6 @@ INHIBIT_DEFAULT_DEPS = "1"
 KERNEL_IMAGETYPE ?= "zImage"
 
 python __anonymous () {
-
-    import bb
-    
     kerneltype = bb.data.getVar('KERNEL_IMAGETYPE', d, 1) or ''
     if kerneltype == 'uImage':
         depends = bb.data.getVar("DEPENDS", d, 1)
@@ -271,7 +268,7 @@ module_conf_rfcomm = "alias bt-proto-3 rfcomm"
 
 python populate_packages_prepend () {
         def extract_modinfo(file):
-                import os, re
+                import re
                 tmpfile = os.tmpnam()
                 cmd = "PATH=\"%s\" %sobjcopy -j .modinfo -O binary %s %s" % (bb.data.getVar("PATH", d, 1), bb.data.getVar("HOST_PREFIX", d, 1) or "", file, tmpfile)
                 os.system(cmd)
@@ -289,7 +286,7 @@ python populate_packages_prepend () {
                 return vals
         
         def parse_depmod():
-                import os, re
+                import re
 
                 dvar = bb.data.getVar('D', d, 1)
                 if not dvar:
@@ -343,7 +340,7 @@ python populate_packages_prepend () {
                 file = file.replace(bb.data.getVar('D', d, 1) or '', '', 1)
 
                 if module_deps.has_key(file):
-                        import os.path, re
+                        import re
                         dependencies = []
                         for i in module_deps[file]:
                                 m = re.match(pattern, os.path.basename(i))
@@ -411,7 +408,7 @@ python populate_packages_prepend () {
         postrm = bb.data.getVar('pkg_postrm_modules', d, 1)
         do_split_packages(d, root='/lib/modules', file_regex=module_regex, output_pattern=module_pattern, description='%s kernel module', postinst=postinst, postrm=postrm, recursive=True, hook=frob_metadata, extra_depends='update-modules kernel-%s' % bb.data.getVar("KERNEL_VERSION", d, 1))
 
-        import re, os
+        import re
         metapkg = "kernel-modules"
         bb.data.setVar('ALLOW_EMPTY_' + metapkg, "1", d)
         bb.data.setVar('FILES_' + metapkg, "", d)
diff --git a/meta/classes/linux-kernel-base.bbclass b/meta/classes/linux-kernel-base.bbclass
index 4e2e2da373..b3e0fdad7a 100644
--- a/meta/classes/linux-kernel-base.bbclass
+++ b/meta/classes/linux-kernel-base.bbclass
@@ -1,6 +1,6 @@
 # parse kernel ABI version out of <linux/version.h>
 def get_kernelversion(p):
-    import re, os
+    import re
 
     fn = p + '/include/linux/utsrelease.h'
     if not os.path.isfile(fn):
@@ -30,7 +30,6 @@ def get_kernelmajorversion(p):
         return None
 
 def linux_module_packages(s, d):
-        import bb, os.path
         suffix = ""
         return " ".join(map(lambda s: "kernel-module-%s%s" % (s.lower().replace('_', '-').replace('@', '+'), suffix), s.split()))
 
diff --git a/meta/classes/openmoko-base.bbclass b/meta/classes/openmoko-base.bbclass
index 8643daa7a4..d7be1c2932 100644
--- a/meta/classes/openmoko-base.bbclass
+++ b/meta/classes/openmoko-base.bbclass
@@ -4,7 +4,6 @@ OPENMOKO_RELEASE ?= "OM-2007"
 OPENMOKO_MIRROR ?= "svn://svn.openmoko.org/trunk"
 
 def openmoko_base_get_subdir(d):
-    import bb
     openmoko, section = bb.data.getVar('SECTION', d, 1).split("/")
     if section == 'base' or section == 'libs': return ""
     elif section in 'apps tools pim'.split(): return "applications"
diff --git a/meta/classes/openmoko2.bbclass b/meta/classes/openmoko2.bbclass
index ef734e4311..233c721ff7 100644
--- a/meta/classes/openmoko2.bbclass
+++ b/meta/classes/openmoko2.bbclass
@@ -5,12 +5,10 @@ OPENMOKO_RELEASE ?= "OM-2007.2"
 OPENMOKO_MIRROR ?= "svn://svn.openmoko.org/trunk"
 
 def openmoko_two_get_license(d):
-    import bb
     openmoko, section = bb.data.getVar('SECTION', d, 1).split("/")
     return "LGPL GPL".split()[section != "libs"]
 
 def openmoko_two_get_subdir(d):
-    import bb
     openmoko, section = bb.data.getVar('SECTION', d, 1).split("/")
     if section == 'base': return ""
     elif section == 'libs': return "libraries"
diff --git a/meta/classes/package.bbclass b/meta/classes/package.bbclass
index 41eeb8d3d1..6d384bebc1 100644
--- a/meta/classes/package.bbclass
+++ b/meta/classes/package.bbclass
@@ -29,7 +29,6 @@ def do_split_packages(d, root, file_regex, output_pattern, description, postinst
         Used in .bb files to split up dynamically generated subpackages of a 
         given package, usually plugins or modules.
         """
-        import os, os.path, bb
 
         dvar = bb.data.getVar('PKGD', d, True)
 
@@ -117,7 +116,6 @@ def do_split_packages(d, root, file_regex, output_pattern, description, postinst
 PACKAGE_DEPENDS += "file-native"
 
 python () {
-    import bb
     if bb.data.getVar('PACKAGES', d, True) != '':
         deps = bb.data.getVarFlag('do_package', 'depends', d) or ""
         for dep in (bb.data.getVar('PACKAGE_DEPENDS', d, True) or "").split():
@@ -135,7 +133,7 @@ def runstrip(file, d):
     # A working 'file' (one which works on the target architecture)
     # is necessary for this stuff to work, hence the addition to do_package[depends]
 
-    import bb, os, commands, stat
+    import commands, stat
 
     pathprefix = "export PATH=%s; " % bb.data.getVar('PATH', d, True)
 
@@ -192,8 +190,6 @@ def runstrip(file, d):
 #
 
 def get_package_mapping (pkg, d):
-        import bb, os
-
         data = read_subpkgdata(pkg, d)
         key = "PKG_%s" % pkg
 
@@ -203,8 +199,6 @@ def get_package_mapping (pkg, d):
         return pkg
 
 def runtime_mapping_rename (varname, d):
-        import bb, os
-
         #bb.note("%s before: %s" % (varname, bb.data.getVar(varname, d, True))) 
 
         new_depends = []
@@ -226,8 +220,6 @@ def runtime_mapping_rename (varname, d):
 #
 
 python package_do_split_locales() {
-        import os
-
         if (bb.data.getVar('PACKAGE_NO_LOCALE', d, True) == '1'):
                 bb.debug(1, "package requested not splitting locales")
                 return
@@ -284,8 +276,6 @@ python package_do_split_locales() {
 }
 
 python perform_packagecopy () {
-        import os
-
         dest = bb.data.getVar('D', d, True)
         dvar = bb.data.getVar('PKGD', d, True)
 
@@ -297,7 +287,7 @@ python perform_packagecopy () {
 }
 
 python populate_packages () {
-        import os, glob, stat, errno, re
+        import glob, stat, errno, re
 
         workdir = bb.data.getVar('WORKDIR', d, True)
         outdir = bb.data.getVar('DEPLOY_DIR', d, True)
@@ -530,7 +520,7 @@ fi
 SHLIBSDIR = "${STAGING_DIR_HOST}/shlibs"
 
 python package_do_shlibs() {
-        import os, re, os.path
+        import re
 
         exclude_shlibs = bb.data.getVar('EXCLUDE_FROM_SHLIBS', d, 0)
         if exclude_shlibs:
@@ -746,7 +736,7 @@ python package_do_shlibs() {
 }
 
 python package_do_pkgconfig () {
-        import re, os
+        import re
 
         packages = bb.data.getVar('PACKAGES', d, True)
         workdir = bb.data.getVar('WORKDIR', d, True)
diff --git a/meta/classes/package_deb.bbclass b/meta/classes/package_deb.bbclass
index d90939fdb6..5c002465b8 100644
--- a/meta/classes/package_deb.bbclass
+++ b/meta/classes/package_deb.bbclass
@@ -15,13 +15,11 @@ DPKG_ARCH_i686 ?= "i386"
 DPKG_ARCH_pentium ?= "i386"
 
 python package_deb_fn () {
-    from bb import data
     bb.data.setVar('PKGFN', bb.data.getVar('PKG',d), d)
 }
 
 addtask package_deb_install
 python do_package_deb_install () {
-    import os, sys
     pkg = bb.data.getVar('PKG', d, 1)
     pkgfn = bb.data.getVar('PKGFN', d, 1)
     rootfs = bb.data.getVar('IMAGE_ROOTFS', d, 1)
@@ -37,6 +35,7 @@ python do_package_deb_install () {
             os.makedirs(rootfs)
         os.chdir(rootfs)
     except OSError:
+        import sys
         raise bb.build.FuncFailed(str(sys.exc_value))
 
     # update packages file
@@ -67,14 +66,13 @@ python do_package_deb_install () {
 }
 
 python do_package_deb () {
-    import sys, re, copy
+    import re, copy
 
     workdir = bb.data.getVar('WORKDIR', d, 1)
     if not workdir:
         bb.error("WORKDIR not defined, unable to package")
         return
 
-    import os # path manipulations
     outdir = bb.data.getVar('DEPLOY_DIR_DEB', d, 1)
     if not outdir:
         bb.error("DEPLOY_DIR_DEB not defined, unable to package")
@@ -135,8 +133,7 @@ python do_package_deb () {
         except ValueError:
             pass
         if not g and bb.data.getVar('ALLOW_EMPTY', localdata) != "1":
-            from bb import note
-            note("Not creating empty archive for %s-%s-%s" % (pkg, bb.data.getVar('PV', localdata, 1), bb.data.getVar('PR', localdata, 1)))
+            bb.note("Not creating empty archive for %s-%s-%s" % (pkg, bb.data.getVar('PV', localdata, 1), bb.data.getVar('PR', localdata, 1)))
             bb.utils.unlockfile(lf)
             continue
 
@@ -186,6 +183,7 @@ python do_package_deb () {
             for (c, fs) in fields:
                 ctrlfile.write(unicode(c % tuple(pullData(fs, localdata))))
         except KeyError:
+            import sys
             (type, value, traceback) = sys.exc_info()
             bb.utils.unlockfile(lf)
             ctrlfile.close()
@@ -252,7 +250,6 @@ python do_package_deb () {
 }
 
 python () {
-    import bb
     if bb.data.getVar('PACKAGES', d, True) != '':
         deps = (bb.data.getVarFlag('do_package_write_deb', 'depends', d) or "").split()
         deps.append('dpkg-native:do_populate_staging')
diff --git a/meta/classes/package_ipk.bbclass b/meta/classes/package_ipk.bbclass
index 68a8b5c40b..2621fa8e91 100644
--- a/meta/classes/package_ipk.bbclass
+++ b/meta/classes/package_ipk.bbclass
@@ -6,12 +6,10 @@ IPKGCONF_TARGET = "${WORKDIR}/opkg.conf"
 IPKGCONF_SDK =  "${WORKDIR}/opkg-sdk.conf"
 
 python package_ipk_fn () {
-        from bb import data
         bb.data.setVar('PKGFN', bb.data.getVar('PKG',d), d)
 }
 
 python package_ipk_install () {
-        import os, sys
         pkg = bb.data.getVar('PKG', d, 1)
         pkgfn = bb.data.getVar('PKGFN', d, 1)
         rootfs = bb.data.getVar('IMAGE_ROOTFS', d, 1)
@@ -25,6 +23,7 @@ python package_ipk_install () {
                 bb.mkdirhier(rootfs)
                 os.chdir(rootfs)
         except OSError:
+                import sys
                 (type, value, traceback) = sys.exc_info()
                 print value
                 raise bb.build.FuncFailed
@@ -126,14 +125,13 @@ package_generate_archlist () {
 }
 
 python do_package_ipk () {
-        import sys, re, copy
+        import re, copy
 
         workdir = bb.data.getVar('WORKDIR', d, 1)
         if not workdir:
                 bb.error("WORKDIR not defined, unable to package")
                 return
 
-        import os # path manipulations
         outdir = bb.data.getVar('DEPLOY_DIR_IPK', d, 1)
         if not outdir:
                 bb.error("DEPLOY_DIR_IPK not defined, unable to package")
@@ -192,8 +190,7 @@ python do_package_ipk () {
                 except ValueError:
                         pass
                 if not g and bb.data.getVar('ALLOW_EMPTY', localdata) != "1":
-                        from bb import note
-                        note("Not creating empty archive for %s-%s-%s" % (pkg, bb.data.getVar('PV', localdata, 1), bb.data.getVar('PR', localdata, 1)))
+                        bb.note("Not creating empty archive for %s-%s-%s" % (pkg, bb.data.getVar('PV', localdata, 1), bb.data.getVar('PR', localdata, 1)))
                         bb.utils.unlockfile(lf)
                         continue
 
@@ -234,6 +231,7 @@ python do_package_ipk () {
                                                 raise KeyError(f)
                                 ctrlfile.write(c % tuple(pullData(fs, localdata)))
                 except KeyError:
+                        import sys
                         (type, value, traceback) = sys.exc_info()
                         ctrlfile.close()
                         bb.utils.unlockfile(lf)
@@ -302,7 +300,6 @@ python do_package_ipk () {
 }
 
 python () {
-    import bb
     if bb.data.getVar('PACKAGES', d, True) != '':
         deps = (bb.data.getVarFlag('do_package_write_ipk', 'depends', d) or "").split()
         deps.append('opkg-utils-native:do_populate_staging')
diff --git a/meta/classes/package_rpm.bbclass b/meta/classes/package_rpm.bbclass
index d291733dcf..49e84678b8 100644
--- a/meta/classes/package_rpm.bbclass
+++ b/meta/classes/package_rpm.bbclass
@@ -12,9 +12,6 @@ RPMOPTS="--rcfile=${WORKDIR}/rpmrc --target ${TARGET_SYS}"
 RPM="rpm ${RPMOPTS}"
 
 python write_specfile() {
-        from bb import data, build
-        import sys
-
         version = bb.data.getVar('PV', d, 1)
         version = version.replace('-', '+')
         bb.data.setVar('RPMPV', version, d)
@@ -55,8 +52,7 @@ python write_specfile() {
                         pass
 
         if not files and bb.data.getVar('ALLOW_EMPTY', d) != "1":
-                from bb import note
-                note("Not creating empty archive for %s-%s-%s" % (bb.data.getVar('PKG',d, 1), bb.data.getVar('PV', d, 1), bb.data.getVar('PR', d, 1)))
+                bb.note("Not creating empty archive for %s-%s-%s" % (bb.data.getVar('PKG',d, 1), bb.data.getVar('PV', d, 1), bb.data.getVar('PR', d, 1)))
                 return
 
         # output .spec using this metadata store
@@ -159,7 +155,6 @@ python do_package_rpm () {
                 bb.error("WORKDIR not defined, unable to package")
                 return
 
-        import os # path manipulations
         outdir = bb.data.getVar('DEPLOY_DIR_RPM', d, 1)
         if not outdir:
                 bb.error("DEPLOY_DIR_RPM not defined, unable to package")
@@ -213,7 +208,6 @@ python do_package_rpm () {
 }
 
 python () {
-    import bb
     if bb.data.getVar('PACKAGES', d, True) != '':
         deps = (bb.data.getVarFlag('do_package_write_rpm', 'depends', d) or "").split()
         deps.append('rpm-native:do_populate_staging')
diff --git a/meta/classes/package_tar.bbclass b/meta/classes/package_tar.bbclass
index 876cec6cfe..24a77be93c 100644
--- a/meta/classes/package_tar.bbclass
+++ b/meta/classes/package_tar.bbclass
@@ -3,15 +3,12 @@ inherit package
 IMAGE_PKGTYPE ?= "tar"
 
 python package_tar_fn () {
-        import os
-        from bb import data
         fn = os.path.join(bb.data.getVar('DEPLOY_DIR_TAR', d), "%s-%s-%s.tar.gz" % (bb.data.getVar('PKG', d), bb.data.getVar('PV', d), bb.data.getVar('PR', d)))
         fn = bb.data.expand(fn, d)
         bb.data.setVar('PKGFN', fn, d)
 }
 
 python package_tar_install () {
-        import os, sys
         pkg = bb.data.getVar('PKG', d, 1)
         pkgfn = bb.data.getVar('PKGFN', d, 1)
         rootfs = bb.data.getVar('IMAGE_ROOTFS', d, 1)
@@ -23,6 +20,7 @@ python package_tar_install () {
                 bb.mkdirhier(rootfs)
                 os.chdir(rootfs)
         except OSError:
+                import sys
                 (type, value, traceback) = sys.exc_info()
                 print value
                 raise bb.build.FuncFailed
@@ -42,7 +40,6 @@ python do_package_tar () {
                 bb.error("WORKDIR not defined, unable to package")
                 return
 
-        import os # path manipulations
         outdir = bb.data.getVar('DEPLOY_DIR_TAR', d, 1)
         if not outdir:
                 bb.error("DEPLOY_DIR_TAR not defined, unable to package")
@@ -94,7 +91,6 @@ python do_package_tar () {
 }
 
 python () {
-    import bb
     if bb.data.getVar('PACKAGES', d, True) != '':
         deps = (bb.data.getVarFlag('do_package_write_tar', 'depends', d) or "").split()
         deps.append('tar-native:do_populate_staging')
diff --git a/meta/classes/packaged-staging.bbclass b/meta/classes/packaged-staging.bbclass
index b9d59bbd8a..82a4450bc3 100644
--- a/meta/classes/packaged-staging.bbclass
+++ b/meta/classes/packaged-staging.bbclass
@@ -27,7 +27,6 @@ PSTAGE_NATIVEDEPENDS = "\
 BB_STAMP_WHITELIST = "${PSTAGE_NATIVEDEPENDS}"
 
 python () {
-    import bb
     pstage_allowed = True
 
     # These classes encode staging paths into the binary data so can only be
@@ -81,8 +80,6 @@ PSTAGE_LIST_CMD         = "${PSTAGE_PKGMANAGER} -f ${PSTAGE_MACHCONFIG} -o ${TMP
 PSTAGE_TMPDIR_STAGE     = "${WORKDIR}/staging-pkg"
 
 def pstage_manualclean(srcname, destvarname, d):
-        import os, bb
-
         src = os.path.join(bb.data.getVar('PSTAGE_TMPDIR_STAGE', d, True), srcname)
         dest = bb.data.getVar(destvarname, d, True)
 
@@ -95,7 +92,6 @@ def pstage_manualclean(srcname, destvarname, d):
                         os.system("rm %s 2> /dev/null" % filepath)
 
 def pstage_set_pkgmanager(d):
-    import bb
     path = bb.data.getVar("PATH", d, 1)
     pkgmanager = bb.which(path, 'opkg-cl')
     if pkgmanager == "":
@@ -105,8 +101,6 @@ def pstage_set_pkgmanager(d):
 
 
 def pstage_cleanpackage(pkgname, d):
-        import os, bb
-
         path = bb.data.getVar("PATH", d, 1)
         pstage_set_pkgmanager(d)
         list_cmd = bb.data.getVar("PSTAGE_LIST_CMD", d, True)
@@ -168,8 +162,6 @@ PSTAGE_TASKS_COVERED = "fetch unpack munge patch configure qa_configure rig_loca
 SCENEFUNCS += "packagestage_scenefunc"
 
 python packagestage_scenefunc () {
-    import os
-
     if bb.data.getVar("PSTAGING_ACTIVE", d, 1) == "0":
         return
 
@@ -249,10 +241,7 @@ packagestage_scenefunc[dirs] = "${STAGING_DIR}"
 
 addhandler packagedstage_stampfixing_eventhandler
 python packagedstage_stampfixing_eventhandler() {
-    from bb.event import getName
-    import os
-
-    if getName(e) == "StampUpdate":
+    if bb.event.getName(e) == "StampUpdate":
         taskscovered = bb.data.getVar("PSTAGE_TASKS_COVERED", e.data, 1).split()
         for (fn, task) in e.targets:
             # strip off 'do_'
diff --git a/meta/classes/packagedata.bbclass b/meta/classes/packagedata.bbclass
index c9d64d6da2..86f18a9e96 100644
--- a/meta/classes/packagedata.bbclass
+++ b/meta/classes/packagedata.bbclass
@@ -1,5 +1,4 @@
 def packaged(pkg, d):
-        import os, bb
         return os.access(get_subpkgedata_fn(pkg, d) + '.packaged', os.R_OK)
 
 def read_pkgdatafile(fn):
@@ -10,7 +9,6 @@ def read_pkgdatafile(fn):
                 c = codecs.getdecoder("string_escape")
                 return c(str)[0]
 
-        import os
         if os.access(fn, os.R_OK):
                 import re
                 f = file(fn, 'r')
@@ -25,7 +23,6 @@ def read_pkgdatafile(fn):
         return pkgdata
 
 def get_subpkgedata_fn(pkg, d):
-        import bb, os
         archs = bb.data.expand("${PACKAGE_ARCHS}", d).split(" ")
         archs.reverse()
         pkgdata = bb.data.expand('${TMPDIR}/pkgdata/', d)
@@ -37,25 +34,20 @@ def get_subpkgedata_fn(pkg, d):
         return bb.data.expand('${PKGDATA_DIR}/runtime/%s' % pkg, d)
 
 def has_subpkgdata(pkg, d):
-        import bb, os
         return os.access(get_subpkgedata_fn(pkg, d), os.R_OK)
 
 def read_subpkgdata(pkg, d):
-        import bb
         return read_pkgdatafile(get_subpkgedata_fn(pkg, d))
 
 def has_pkgdata(pn, d):
-        import bb, os
         fn = bb.data.expand('${PKGDATA_DIR}/%s' % pn, d)
         return os.access(fn, os.R_OK)
 
 def read_pkgdata(pn, d):
-        import bb
         fn = bb.data.expand('${PKGDATA_DIR}/%s' % pn, d)
         return read_pkgdatafile(fn)
 
 python read_subpackage_metadata () {
-        import bb
         data = read_pkgdata(bb.data.getVar('PN', d, 1), d)
 
         for key in data.keys():
@@ -72,7 +64,6 @@ python read_subpackage_metadata () {
 # Collapse FOO_pkg variables into FOO
 #
 def read_subpkgdata_dict(pkg, d):
-        import bb
         ret = {}
         subd = read_pkgdatafile(get_subpkgedata_fn(pkg, d))
         for var in subd:
diff --git a/meta/classes/packagehistory.bbclass b/meta/classes/packagehistory.bbclass
index 185ab545ff..492bbac218 100644
--- a/meta/classes/packagehistory.bbclass
+++ b/meta/classes/packagehistory.bbclass
@@ -61,8 +61,6 @@ python emit_pkghistory() {
 
 
 def check_pkghistory(pkg, pe, pv, pr, lastversion):
-        import bb
-
         (last_pe, last_pv, last_pr) = lastversion
 
         bb.debug(2, "Checking package history")
@@ -72,7 +70,6 @@ def check_pkghistory(pkg, pe, pv, pr, lastversion):
 
 
 def write_pkghistory(pkg, pe, pv, pr, d):
-        import bb, os
         bb.debug(2, "Writing package history")
 
         pkghistdir = bb.data.getVar('PKGHIST_DIR', d, True)
@@ -82,8 +79,6 @@ def write_pkghistory(pkg, pe, pv, pr, d):
                 os.makedirs(verpath)
 
 def write_latestlink(pkg, pe, pv, pr, d):
-        import bb, os
-
         pkghistdir = bb.data.getVar('PKGHIST_DIR', d, True)
 
         def rm_link(path):
diff --git a/meta/classes/patch.bbclass b/meta/classes/patch.bbclass
index ba0f19215d..0706a02bc9 100644
--- a/meta/classes/patch.bbclass
+++ b/meta/classes/patch.bbclass
@@ -4,8 +4,6 @@
 QUILTRCFILE ?= "${STAGING_BINDIR_NATIVE}/quiltrc"
 
 def patch_init(d):
-        import os, sys
-
         class NotFoundError(Exception):
                 def __init__(self, path):
                         self.path = path
@@ -13,8 +11,6 @@ def patch_init(d):
                         return "Error: %s not found." % self.path
 
         def md5sum(fname):
-                import sys
-
                 # when we move to Python 2.5 as minimal supported
                 # we can kill that try/except as hashlib is 2.5+
                 try:
@@ -76,8 +72,6 @@ def patch_init(d):
                 def __str__(self):
                         return "Patch Error: %s" % self.msg
 
-        import bb, bb.data, bb.fetch
-
         class PatchSet(object):
                 defaults = {
                         "strippath": 1
@@ -251,6 +245,7 @@ def patch_init(d):
                                 try:
                                         output = runcmd(["quilt", "applied"], self.dir)
                                 except CmdError:
+                                        import sys
                                         if sys.exc_value.output.strip() == "No patches applied":
                                                 return
                                         else:
@@ -364,6 +359,7 @@ def patch_init(d):
                         try:
                                 self.patchset.Push()
                         except Exception:
+                                import sys
                                 os.chdir(olddir)
                                 raise sys.exc_value
 
@@ -458,9 +454,6 @@ PATCHDEPENDENCY = "${PATCHTOOL}-native:do_populate_staging"
 do_patch[depends] = "${PATCHDEPENDENCY}"
 
 python patch_do_patch() {
-        import re
-        import bb.fetch
-
         patch_init(d)
 
         src_uri = (bb.data.getVar('SRC_URI', d, 1) or '').split()
diff --git a/meta/classes/rootfs_ipk.bbclass b/meta/classes/rootfs_ipk.bbclass
index aa28cd63f4..065b78b814 100644
--- a/meta/classes/rootfs_ipk.bbclass
+++ b/meta/classes/rootfs_ipk.bbclass
@@ -159,7 +159,7 @@ ipk_insert_feed_uris () {
 }
 
 python () {
-    import bb
+
     if bb.data.getVar('BUILD_IMAGES_FROM_FEEDS', d, True):
         flags = bb.data.getVarFlag('do_rootfs', 'recrdeptask', d)
         flags = flags.replace("do_package_write_ipk", "")
diff --git a/meta/classes/rootfs_rpm.bbclass b/meta/classes/rootfs_rpm.bbclass
index 1e8ad6d9ef..da5243ddf2 100644
--- a/meta/classes/rootfs_rpm.bbclass
+++ b/meta/classes/rootfs_rpm.bbclass
@@ -234,7 +234,6 @@ install_all_locales() {
 }
 
 python () {
-    import bb
     if bb.data.getVar('BUILD_IMAGES_FROM_FEEDS', d, True):
         flags = bb.data.getVarFlag('do_rootfs', 'recrdeptask', d)
         flags = flags.replace("do_package_write_rpm", "")
diff --git a/meta/classes/sanity.bbclass b/meta/classes/sanity.bbclass
index e11bdd2218..39f1e22003 100644
--- a/meta/classes/sanity.bbclass
+++ b/meta/classes/sanity.bbclass
@@ -3,7 +3,6 @@
 #
 
 def raise_sanity_error(msg):
-        import bb
         bb.fatal(""" Poky's config sanity checker detected a potential misconfiguration.
         Either fix the cause of this error or at your own risk disable the checker (see sanity.conf).
         Following is the list of potential problems / advisories:
@@ -11,8 +10,6 @@ def raise_sanity_error(msg):
         %s""" % msg)
 
 def check_conf_exists(fn, data):
-        import bb, os
-
         bbpath = []
         fn = bb.data.expand(fn, data)
         vbbpath = bb.data.getVar("BBPATH", data)
@@ -26,12 +23,12 @@ def check_conf_exists(fn, data):
 
 def check_sanity(e):
         from bb import note, error, data, __version__
-        from bb.event import Handled, NotHandled, getName
+
         try:
                 from distutils.version import LooseVersion
         except ImportError:
                 def LooseVersion(v): print "WARNING: sanity.bbclass can't compare versions without python-distutils"; return 1
-        import os, commands
+        import commands
 
         # Check the bitbake version meets minimum requirements
         minversion = data.getVar('BB_MIN_VERSION', e.data , True)
@@ -163,10 +160,8 @@ def check_sanity(e):
 
 addhandler check_sanity_eventhandler
 python check_sanity_eventhandler() {
-    from bb import note, error, data, __version__
-    from bb.event import getName
-
-    if getName(e) == "ConfigParsed":
+    from bb.event import Handled, NotHandled
+    if bb.event.getName(e) == "ConfigParsed":
         check_sanity(e)
 
     return NotHandled
diff --git a/meta/classes/siteinfo.bbclass b/meta/classes/siteinfo.bbclass
index 431b81ce29..7b012b7ba7 100644
--- a/meta/classes/siteinfo.bbclass
+++ b/meta/classes/siteinfo.bbclass
@@ -16,8 +16,6 @@
 # If 'what' doesn't exist then an empty value is returned
 #
 def get_siteinfo_list(d):
-       import bb
-
        target = bb.data.getVar('HOST_ARCH', d, 1) + "-" + bb.data.getVar('HOST_OS', d, 1)
 
        targetinfo = {\
@@ -74,8 +72,6 @@ def get_siteinfo_list(d):
 # 2) ${FILE_DIRNAME}/site-${PV}         - app version specific
 #
 def siteinfo_get_files(d):
-       import bb, os
-
        sitefiles = ""
 
        # Determine which site files to look for
diff --git a/meta/classes/sourcepkg.bbclass b/meta/classes/sourcepkg.bbclass
index 390d3684d4..f738553039 100644
--- a/meta/classes/sourcepkg.bbclass
+++ b/meta/classes/sourcepkg.bbclass
@@ -5,8 +5,6 @@ EXCLUDE_FROM ?= ".pc autom4te.cache"
 DISTRO ?= "openembedded"
 
 def get_src_tree(d):
-        import bb
-        import os, os.path
 
         workdir = bb.data.getVar('WORKDIR', d, 1)
         if not workdir:
@@ -56,8 +54,6 @@ sourcepkg_do_archive_bb() {
 }
 
 python sourcepkg_do_dumpdata() {
-        import os
-        import os.path
 
         workdir = bb.data.getVar('WORKDIR', d, 1)
         distro = bb.data.getVar('DISTRO', d, 1)
diff --git a/meta/classes/tinderclient.bbclass b/meta/classes/tinderclient.bbclass
index bc004efb26..28df0f9505 100644
--- a/meta/classes/tinderclient.bbclass
+++ b/meta/classes/tinderclient.bbclass
@@ -51,8 +51,7 @@ def tinder_format_http_post(d,status,log):
     for the tinderbox to be happy.
     """
 
-    from bb import data, build
-    import os,random
+    import random
 
     # the variables we will need to send on this form post
     variables =  {
@@ -125,7 +124,6 @@ def tinder_build_start(d):
     report = report[report.find(search)+len(search):]
     report = report[0:report.find("'")]
 
-    import bb
     bb.note("Machine ID assigned by tinderbox: %s" % report )
 
     # now we will need to save the machine number
@@ -165,7 +163,6 @@ def tinder_print_info(d):
     """
 
     from   bb import data
-    import os
     # get the local vars
 
     time    = tinder_time_string()
@@ -216,7 +213,6 @@ def tinder_print_env():
     Print the environment variables of this build
     """
     from bb import data
-    import os
 
     time_start = tinder_time_string()
     time_end   = tinder_time_string()
@@ -278,7 +274,7 @@ def tinder_do_tinder_report(event):
     """
     from bb.event import getName
     from bb import data, mkdirhier, build
-    import os, glob
+    import glob
 
     # variables
     name = getName(event)
diff --git a/meta/classes/update-alternatives.bbclass b/meta/classes/update-alternatives.bbclass
index c63581c5d1..ddbf4c1947 100644
--- a/meta/classes/update-alternatives.bbclass
+++ b/meta/classes/update-alternatives.bbclass
@@ -11,7 +11,6 @@ update-alternatives --remove ${ALTERNATIVE_NAME} ${ALTERNATIVE_PATH}
 }
 
 def update_alternatives_after_parse(d):
-    import bb
     if bb.data.getVar('ALTERNATIVE_NAME', d) == None:
         raise bb.build.FuncFailed, "%s inherits update-alternatives but doesn't set ALTERNATIVE_NAME" % bb.data.getVar('FILE', d)
     if bb.data.getVar('ALTERNATIVE_PATH', d) == None:
diff --git a/meta/classes/update-rc.d.bbclass b/meta/classes/update-rc.d.bbclass
index 74053edb89..5a8062cc7c 100644
--- a/meta/classes/update-rc.d.bbclass
+++ b/meta/classes/update-rc.d.bbclass
@@ -26,7 +26,6 @@ update-rc.d $D ${INITSCRIPT_NAME} remove
 
 
 def update_rc_after_parse(d):
-    import bb
     if bb.data.getVar('INITSCRIPT_PACKAGES', d) == None:
         if bb.data.getVar('INITSCRIPT_NAME', d) == None:
             raise bb.build.FuncFailed, "%s inherits update-rc.d but doesn't set INITSCRIPT_NAME" % bb.data.getVar('FILE', d)