From 4710c53dcad1ebf3755f3efb9e80ac24bd72a9b2 Mon Sep 17 00:00:00 2001
From: darylm503 <darylm503@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Mon, 16 Apr 2012 22:12:42 +0000
Subject: AppPkg/Applications/Python: Add Python 2.7.2 sources since the
 release of Python 2.7.3 made them unavailable from the python.org web site.

These files are a subset of the python-2.7.2.tgz distribution from python.org.  Changed files from PyMod-2.7.2 have been copied into the corresponding directories of this tree, replacing the original files in the distribution.

Signed-off-by: daryl.mcdaniel@intel.com


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13197 6f19259b-4bc3-4df7-8a09-765794883524
---
 .../Python/Python-2.7.2/Lib/compiler/future.py     | 74 ++++++++++++++++++++++
 1 file changed, 74 insertions(+)
 create mode 100644 AppPkg/Applications/Python/Python-2.7.2/Lib/compiler/future.py

(limited to 'AppPkg/Applications/Python/Python-2.7.2/Lib/compiler/future.py')

diff --git a/AppPkg/Applications/Python/Python-2.7.2/Lib/compiler/future.py b/AppPkg/Applications/Python/Python-2.7.2/Lib/compiler/future.py
new file mode 100644
index 0000000000..8b70924d4f
--- /dev/null
+++ b/AppPkg/Applications/Python/Python-2.7.2/Lib/compiler/future.py
@@ -0,0 +1,74 @@
+"""Parser for future statements
+
+"""
+
+from compiler import ast, walk
+
+def is_future(stmt):
+    """Return true if statement is a well-formed future statement"""
+    if not isinstance(stmt, ast.From):
+        return 0
+    if stmt.modname == "__future__":
+        return 1
+    else:
+        return 0
+
+class FutureParser:
+
+    features = ("nested_scopes", "generators", "division",
+                "absolute_import", "with_statement", "print_function",
+                "unicode_literals")
+
+    def __init__(self):
+        self.found = {} # set
+
+    def visitModule(self, node):
+        stmt = node.node
+        for s in stmt.nodes:
+            if not self.check_stmt(s):
+                break
+
+    def check_stmt(self, stmt):
+        if is_future(stmt):
+            for name, asname in stmt.names:
+                if name in self.features:
+                    self.found[name] = 1
+                else:
+                    raise SyntaxError, \
+                          "future feature %s is not defined" % name
+            stmt.valid_future = 1
+            return 1
+        return 0
+
+    def get_features(self):
+        """Return list of features enabled by future statements"""
+        return self.found.keys()
+
+class BadFutureParser:
+    """Check for invalid future statements"""
+
+    def visitFrom(self, node):
+        if hasattr(node, 'valid_future'):
+            return
+        if node.modname != "__future__":
+            return
+        raise SyntaxError, "invalid future statement " + repr(node)
+
+def find_futures(node):
+    p1 = FutureParser()
+    p2 = BadFutureParser()
+    walk(node, p1)
+    walk(node, p2)
+    return p1.get_features()
+
+if __name__ == "__main__":
+    import sys
+    from compiler import parseFile, walk
+
+    for file in sys.argv[1:]:
+        print file
+        tree = parseFile(file)
+        v = FutureParser()
+        walk(tree, v)
+        print v.found
+        print
-- 
cgit v1.2.3