classes: Remove and sanitise import statements

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

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')