update Shared

Shared/lib/python3.4/site-packages/setuptools/archive_util.py

@@ -64,20 +64,23 @@ def unpack_directory(filename, extract_dir, progress_filter=default_filter):
     Raises ``UnrecognizedFormat`` if `filename` is not a directory
     """
     if not os.path.isdir(filename):
-        raise UnrecognizedFormat("%s is not a directory" % (filename,))
+        raise UnrecognizedFormat("%s is not a directory" % filename)
 
-    paths = {filename:('',extract_dir)}
+    paths = {
+        filename: ('', extract_dir),
+    }
     for base, dirs, files in os.walk(filename):
-        src,dst = paths[base]
+        src, dst = paths[base]
         for d in dirs:
-            paths[os.path.join(base,d)] = src+d+'/', os.path.join(dst,d)
+            paths[os.path.join(base, d)] = src + d + '/', os.path.join(dst, d)
         for f in files:
-            target = os.path.join(dst,f)
-            target = progress_filter(src+f, target)
+            target = os.path.join(dst, f)
+            target = progress_filter(src + f, target)
             if not target:
-                continue    # skip non-files
+                # skip non-files
+                continue
             ensure_directory(target)
-            f = os.path.join(base,f)
+            f = os.path.join(base, f)
             shutil.copyfile(f, target)
             shutil.copystat(f, target)
 
@@ -112,12 +115,8 @@ def unpack_zipfile(filename, extract_dir, progress_filter=default_filter):
                 # file
                 ensure_directory(target)
                 data = z.read(info.filename)
-                f = open(target,'wb')
-                try:
+                with open(target, 'wb') as f:
                     f.write(data)
-                finally:
-                    f.close()
-                    del data
             unix_attributes = info.external_attr >> 16
             if unix_attributes:
                 os.chmod(target, unix_attributes)
@@ -137,18 +136,21 @@ def unpack_tarfile(filename, extract_dir, progress_filter=default_filter):
             "%s is not a compressed or uncompressed tar file" % (filename,)
         )
     with contextlib.closing(tarobj):
-        tarobj.chown = lambda *args: None   # don't do any chowning!
+        # don't do any chowning!
+        tarobj.chown = lambda *args: None
         for member in tarobj:
             name = member.name
             # don't extract absolute paths or ones with .. in them
             if not name.startswith('/') and '..' not in name.split('/'):
                 prelim_dst = os.path.join(extract_dir, *name.split('/'))
 
-                # resolve any links and to extract the link targets as normal files
+                # resolve any links and to extract the link targets as normal
+                # files
                 while member is not None and (member.islnk() or member.issym()):
                     linkpath = member.linkname
                     if member.issym():
-                        linkpath = posixpath.join(posixpath.dirname(member.name), linkpath)
+                        base = posixpath.dirname(member.name)
+                        linkpath = posixpath.join(base, linkpath)
                         linkpath = posixpath.normpath(linkpath)
                     member = tarobj._getmember(linkpath)
 
@@ -158,9 +160,11 @@ def unpack_tarfile(filename, extract_dir, progress_filter=default_filter):
                         if final_dst.endswith(os.sep):
                             final_dst = final_dst[:-1]
                         try:
-                            tarobj._extract_member(member, final_dst)  # XXX Ugh
+                            # XXX Ugh
+                            tarobj._extract_member(member, final_dst)
                         except tarfile.ExtractError:
-                            pass    # chown/chmod/mkfifo/mknode/makedev failed
+                            # chown/chmod/mkfifo/mknode/makedev failed
+                            pass
         return True
 
 extraction_drivers = unpack_directory, unpack_zipfile, unpack_tarfile