RustPython
diff --git a/‎Lib/_markupbase.py‎
Lines changed: 1 addition & 1 deletion b/‎Lib/_markupbase.py‎
Lines changed: 1 addition & 1 deletion
diff --git a/‎Lib/enum.py‎
Lines changed: 2 additions & 1 deletion b/‎Lib/enum.py‎
Lines changed: 2 additions & 1 deletion
diff --git a/‎Lib/mailbox.py‎
Lines changed: 1 addition & 5 deletions b/‎Lib/mailbox.py‎
Lines changed: 1 addition & 5 deletions
@@ -13,7 +13,7 @@
 _markedsectionclose = re.compile(r']\s*]\s*>')
 
 # An analysis of the MS-Word extensions is available at
-# http://www.planetpublish.com/xmlarena/xap/Thursday/WordtoXML.pdf
+# http://web.archive.org/web/20060321153828/http://www.planetpublish.com/xmlarena/xap/Thursday/WordtoXML.pdf
 
 _msmarkedsectionclose = re.compile(r']\s*>')
 
 
@@ -129,7 +129,7 @@ def show_flag_values(value):
 def bin(num, max_bits=None):
     """
     Like built-in bin(), except negative values are represented in
-    twos-compliment, and the leading bit always indicates sign
+    twos-complement, and the leading bit always indicates sign
     (0=positive, 1=negative).
 
     >>> bin(10)
@@ -138,6 +138,7 @@ def bin(num, max_bits=None):
     '0b1 0101'
     """
 
+    num = num.__index__()
     ceiling = 2 ** (num).bit_length()
     if num >= 0:
         s = bltns.bin(num + ceiling).replace('1', '0', 1)
 
@@ -2183,11 +2183,7 @@ def _unlock_file(f):
 
 def _create_carefully(path):
     """Create a file if it doesn't exist and open for reading and writing."""
-    fd = os.open(path, os.O_CREAT | os.O_EXCL | os.O_RDWR, 0o666)
-    try:
-        return open(path, 'rb+')
-    finally:
-        os.close(fd)
+    return open(path, 'xb+')
 
 def _create_temporary(path):
     """Create a temp file based on path and open for reading and writing."""