[Tutor] Tutor digest, Vol 1 #537 - 13 msgs

[Kalle Svensson]

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Sez Sharriff Aina:

> >>> from os import *
> >>> test1 =3D open('junk.txt', 'w')
> Traceback (innermost last):
>   File "<pyshell#1>", line 1, in ?
>     test1 =3D open('junk.txt', 'w')
> TypeError: an integer is required
> >>>=20
>=20
> the sytax is fine, I =B4ve tried it out several times. I=B4ve noticed tha=
t this
> prooblem starts when I import the OS module, witrhout it, the sytax is ok=
ay

The problem is that you use from os import *, and os contains a function
named open.  Check it out:
http://www.python.org/doc/current/lib/os-fd-ops.html

The solution is:  Don't do that.  Use import os, not from os import *.
Very generally, don't use from ... import * at all, or at least only when
you are absolutely, positively sure that it's safe.

HTH,
  Kalle
--=20
Email: kalle@gnupung.net     | You can tune a filesystem, but you
Web: http://www.gnupung.net/ | can't tune a fish. -- man tunefs(8)
PGP fingerprint: 0C56 B171 8159 327F 1824 F5DE 74D7 80D7 BF3B B1DD

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