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add __enter__ and __exit__

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This commit is contained in:
David Rose 2010-03-03 18:32:46 +00:00
parent 6785a61f3c
commit 991d5179a3
1 changed files with 16 additions and 5 deletions
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21
direct/src/stdpy/file.py
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@ -179,7 +179,8 @@ class file:
if not self.__reader:
if not self.__writer:
# The stream is not even open at all.
raise ValueError
message = 'I/O operation on closed file'
raise ValueError, message
# The stream is open only in write mode.
message = 'Attempt to read from write-only stream'
raise IOError, message
@ -198,7 +199,8 @@ class file:
if not self.__reader:
if not self.__writer:
# The stream is not even open at all.
raise ValueError
message = 'I/O operation on closed file'
raise ValueError, message
# The stream is open only in write mode.
message = 'Attempt to read from write-only stream'
raise IOError, message
@ -229,7 +231,8 @@ class file:
else:
if self.__reader:
return self.__stream.tellg()
raise ValueError
message = 'I/O operation on closed file'
raise ValueError, message
def truncate(self):
""" Sorry, this isn't supported by Panda's low-level I/O,
@ -240,7 +243,8 @@ class file:
if not self.__writer:
if not self.__reader:
# The stream is not even open at all.
raise ValueError
message = 'I/O operation on closed file'
raise ValueError, message
# The stream is open only in read mode.
message = 'Attempt to write to read-only stream'
raise IOError, message
@ -251,7 +255,8 @@ class file:
if not self.__writer:
if not self.__reader:
# The stream is not even open at all.
raise ValueError
message = 'I/O operation on closed file'
raise ValueError, message
# The stream is open only in read mode.
message = 'Attempt to write to read-only stream'
raise IOError, message
@ -259,6 +264,12 @@ class file:
self.__writer.appendData(line)
self.__lastWrite = True
def __enter__(self):
return self
def __exit__(self, t, v, tb):
self.close()
open = file
def listdir(path):