I have the following code fragment:
def database(self):
databasename=""
host=""
user=""
password=""
try:
self.fp=file("detailing.dat","rb")
except IOError:
self.fp=file("detailing.dat","wb")
pickle.dump([databasename,host,user,password],self.fp,-1)
self.fp.close()
selffp=file("detailing.dat","rb")
[databasename,host,user,password]=pickle.load(self.fp)
return
It has the error:
Traceback (most recent call last):
File "detailing.py", line 91, in ?
app=myApp()
File "detailing.py", line 20, in __init__
wx.App.__init__(self,redirect,filename,useBestVisual,clearSigInt)
File "/usr/lib64/python2.4/site-packages/wx-2.6-gtk2-unicode/wx/_core.py", line 7473, in __init__
self._BootstrapApp()
File "/usr/lib64/python2.4/site-packages/wx-2.6-gtk2-unicode/wx/_core.py", line 7125, in _BootstrapApp
return _core_.PyApp__BootstrapApp(*args, **kwargs)
File "detailing.py", line 33, in OnInit
self.database()
File "detailing.py", line 87, in database
[databasename,host,user,password]=pickle.load(self.fp)
File "/usr/lib64/python2.4/pickle.py", line 1390, in load
return Unpickler(file).load()
File "/usr/lib64/python2.4/pickle.py", line 872, in load
dispatch[key](self)
File "/usr/lib64/python2.4/pickle.py", line 894, in load_eof
raise EOFError
EOFError
What am I doing wrong?
Unless you've got a typo, the issue may be in this line where you assign the file handle to selffp
not self.fp
:
selffp=file("detailing.dat","rb")
If that is a typo, and your code actually opens the file to self.fp
, then you may wish to verify that the file actually has contents (ie: that the previous pickle worked)... the error suggests that the file is empty.
Edit: In the comments to this answer, S. Lott has a nice summary of why the typo generated the error you saw that I'm pasting here for completeness of the answer: "selffp will be the unused opened file, and self.fp (the old closed file) will be used for the load".
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