canonic(): This used to be equivalent to str() but that caused too
much breakage (esp. in JPython which holds absolute path names in co_filename already). This implementation uses os.path.abspath() as a slightly better way to canonicalize path names. It implements a cache.
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Lib/bdb.py
15
Lib/bdb.py
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@ -1,6 +1,7 @@
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# Debugger basics
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import sys
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import os
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import types
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BdbQuit = 'bdb.BdbQuit' # Exception to give up completely
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@ -17,12 +18,14 @@ class Bdb:
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def __init__(self):
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self.breaks = {}
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# We want to have a method self.canonic() which
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# canonicalizes filenames before comparing them
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# but we want the default to be a very fast no-op.
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# Solution: the built-in str function.
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if not hasattr(self, "canonic"):
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self.canonic = str
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self.fncache = {}
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def canonic(self, filename):
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canonic = self.fncache.get(filename)
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if not canonic:
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canonic = os.path.abspath(filename)
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self.fncache[filename] = canonic
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return canonic
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def reset(self):
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import linecache
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