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Python Discussion Thread
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Aug 22nd, 2008

File exists or not?

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Hi,

I am using a dialog box where user selects a .txt file from the local drive. The selected file along with the folder path is displayed in a textbox on the form. The user can now edit the textbox. On click on 'Proceed' button, I am saving that path.

Now if the user edits the file name(gives a file name which does not exist) the application should throw an error. How to check wheteher that file name exists in the local drive or not???.
If it does not exists then a message box with error message should be shown to the user.

Please help!....

Regards,
Dinil

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dinilkarun

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Posting Whiz in Training

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Aug 22nd, 2008

Re: File exists or not?

First, import the os module:

Python Syntax (Toggle Plain Text)

import os

Then check if the path exists:

Python Syntax (Toggle Plain Text)
if os.path.exists(MY_PATH_HERE):
    #Do something...
else:
    #Throw an error
if os.path.exists(MY_PATH_HERE):
    #Do something...
else:
    #Throw an error

OutOfReach

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Newbie Poster

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Aug 22nd, 2008

Re: File exists or not?

And os.path.isfile(name) will work for a file. Note that name is the full name, so include the full path.

woooee

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Nearly a Posting Maven

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Aug 25th, 2008

Re: File exists or not?

Thanks a lot.... Its working.

Cheers,
Dinil

dinilkarun

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