first commit

app/lib/face/compat.py

@@ -0,0 +1,64 @@
+# -*- coding: utf-8 -*-
+
+"""
+This module handles import compatibility issues between Python 2 and
+Python 3.
+"""
+
+import sys
+import random
+import string
+
+# -------
+# Pythons
+# -------
+
+# Syntax sugar.
+_ver = sys.version_info
+
+#: Python 2.x?
+is_py2 = (_ver[0] == 2)
+
+#: Python 3.x?
+is_py3 = (_ver[0] == 3)
+
+try:
+    import simplejson as json
+except ImportError:
+    import json
+
+# ---------
+# Specifics
+# ---------
+
+if is_py2:
+    from urllib2 import Request, urlopen, HTTPError, URLError
+    builtin_str = str
+    bytes = str
+    str = unicode
+    basestring = basestring
+    numeric_types = (int, long, float)
+    integer_types = (int, long)
+
+elif is_py3:
+    from urllib.request import Request, urlopen
+    from urllib.error import HTTPError, URLError
+    builtin_str = str
+    str = str
+    bytes = bytes
+    basestring = (str, bytes)
+    numeric_types = (int, float)
+    integer_types = (int,)
+
+
+def enc(x):
+    if isinstance(x, str):
+        return x.encode('utf-8')
+    elif isinstance(x, numeric_types):
+        return str(x).encode('utf-8')
+    return x
+
+
+def choose_boundary():
+    rand_letters = ''.join(random.sample(string.ascii_letters+string.digits, 15))
+    return '{ch}{flag}{rand}'.format(ch='-'*6, flag='PylibFormBoundary', rand=rand_letters)