fix blade package tools and compatibility to python2.7 (#1035)

Co-authored-by: jefferydeng <[email protected]>
Co-authored-by: CHEN Feng <[email protected]>

dist_blade

@@ -49,9 +49,9 @@ function make_blade_zip() {
 
     cd $src_dir
 
-    echo "VERSION = r'''$version'''" > blade/version.py
+    echo "VERSION = r'''$version'''" > blade/blade_version.py
     zip blade.zip __main__.py blade/*.py
-    rm blade/version.py
+    rm blade/blade_version.py
     mv ./blade.zip ${dist_file_path}
 
     cd $blade_dir

src/blade/command_line.py

@@ -27,9 +27,9 @@
 from blade.toolchain import BuildArchitecture
 from blade.toolchain import ToolChain
 
-# The 'version.py' is generated by the dist script, then it only exists in blade.zip
+# The 'blade_version.py' is generated by the dist script, then it only exists in blade.zip
 try:
-    from blade.version import VERSION
+    from blade.blade_version import VERSION
 except ImportError:
     VERSION = '(developing, unversioned)'
 

src/blade/version.py

@@ -150,7 +150,7 @@ class StrictVersion(Version):
     """
 
     version_re = re.compile(
-        r'^(\d+) \. (\d+) (\. (\d+))? ([ab](\d+))?$', re.VERBOSE | re.ASCII
+        r'^(\d+) \. (\d+) (\. (\d+))? ([ab](\d+))?$', re.VERBOSE
     )
 
     def parse(self, vstring):
@@ -356,4 +356,4 @@ def _cmp(self, other):
             return 1
 
 
-# end class LooseVersion
+# end class LooseVersion