Hi there,
why must file be opened in "r" -mode, before loading works
with Pickling? This forces me to close the file between pickle.dump
and pickle.load. :(
Example:
-----************------
a = {'pekka': 1, 'jussi': 2}
fh = open('c:\temp\l og.log', "wb")
pickle.dump(a,f h)
fh.close()
**** now:
fh = open('c:\temp\l og.log', "wb")
b = pickle.load(fh)
**** gives error:
IOError: (0, 'Error')
**** however:
fh = open('c:\temp\l oglog', "rb")
b = pickle.load(fh)
**** works.
-pekka- 1 1380
Pekka Niiranen wrote: Hi there,
why must file be opened in "r" -mode, before loading works with Pickling? This forces me to close the file between pickle.dump and pickle.load. :(
Example: -----************------
a = {'pekka': 1, 'jussi': 2} fh = open('c:\temp\l og.log', "wb") pickle.dump(a,f h) fh.close()
**** now: fh = open('c:\temp\l og.log', "wb") b = pickle.load(fh) **** gives error: IOError: (0, 'Error')
**** however: fh = open('c:\temp\l oglog', "rb") b = pickle.load(fh) **** works.
Well, unpickling involves reading from the file, so you must open it in
read and write mode, e.g. "w+b".
BTW, you should reset the file pointer between dumping and loading by
using seek().
Reinhold
--
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mitbrächte, wäre das bedauerlich. Was bei Windows der Umfang eines
"kompletten Betriebssystems " ist, nennt man bei Linux eine Rescuedisk.
-- David Kastrup in de.comp.os.unix .linux.misc This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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