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Use isinstance() in preference to comparison of type by is.

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This commit is contained in:
Jeremy Hylton 2002-05-10 21:00:35 +00:00
parent fad2f59313
commit e037665f99
1 changed files with 2 additions and 2 deletions
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4
Lib/StringIO.py
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@ -39,7 +39,7 @@ __all__ = ["StringIO"]
class StringIO:
def __init__(self, buf = ''):
# Force self.buf to be a string or unicode
if type(buf) is not types.UnicodeType:
if not isinstance(buf, types.UnicodeType):
buf = str(buf)
self.buf = buf
self.len = len(buf)
@ -138,7 +138,7 @@ class StringIO:
raise ValueError, "I/O operation on closed file"
if not s: return
# Force s to be a string or unicode
if type(s) is not types.UnicodeType:
if not isinstance(s, types.UnicodeType):
s = str(s)
if self.pos > self.len:
self.buflist.append('\0'*(self.pos - self.len))