mercurial/pure/charencode.py

--- a/mercurial/pure/charencode.py	Sat Oct 05 10:29:34 2019 -0400
+++ b/mercurial/pure/charencode.py	Sun Oct 06 09:45:02 2019 -0400
@@ -9,9 +9,8 @@
 
 import array
 
-from .. import (
-    pycompat,
-)
+from .. import pycompat
+
 
 def isasciistr(s):
     try:
@@ -20,6 +19,7 @@
     except UnicodeDecodeError:
         return False
 
+
 def asciilower(s):
     '''convert a string to lowercase if ASCII
 
@@ -27,6 +27,7 @@
     s.decode('ascii')
     return s.lower()
 
+
 def asciiupper(s):
     '''convert a string to uppercase if ASCII
 
@@ -34,22 +35,24 @@
     s.decode('ascii')
     return s.upper()
 
+
 _jsonmap = []
 _jsonmap.extend("\\u%04x" % x for x in range(32))
 _jsonmap.extend(pycompat.bytechr(x) for x in range(32, 127))
 _jsonmap.append('\\u007f')
 _jsonmap[0x09] = '\\t'
-_jsonmap[0x0a] = '\\n'
+_jsonmap[0x0A] = '\\n'
 _jsonmap[0x22] = '\\"'
-_jsonmap[0x5c] = '\\\\'
+_jsonmap[0x5C] = '\\\\'
 _jsonmap[0x08] = '\\b'
-_jsonmap[0x0c] = '\\f'
-_jsonmap[0x0d] = '\\r'
+_jsonmap[0x0C] = '\\f'
+_jsonmap[0x0D] = '\\r'
 _paranoidjsonmap = _jsonmap[:]
-_paranoidjsonmap[0x3c] = '\\u003c'  # '<' (e.g. escape "</script>")
-_paranoidjsonmap[0x3e] = '\\u003e'  # '>'
+_paranoidjsonmap[0x3C] = '\\u003c'  # '<' (e.g. escape "</script>")
+_paranoidjsonmap[0x3E] = '\\u003e'  # '>'
 _jsonmap.extend(pycompat.bytechr(x) for x in range(128, 256))
 
+
 def jsonescapeu8fast(u8chars, paranoid):
     """Convert a UTF-8 byte string to JSON-escaped form (fast path)
 
@@ -64,11 +67,13 @@
     except IndexError:
         raise ValueError
 
+
 if pycompat.ispy3:
     _utf8strict = r'surrogatepass'
 else:
     _utf8strict = r'strict'
 
+
 def jsonescapeu8fallback(u8chars, paranoid):
     """Convert a UTF-8 byte string to JSON-escaped form (slow path)