Opening Files in Python - Newbie Question

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Discussion Overview

The discussion revolves around the syntax for opening files in Python, specifically addressing a newbie's question about how to correctly specify the file path for reading a text file. The scope includes practical application and troubleshooting related to file handling in Python.

Discussion Character

  • Homework-related
  • Technical explanation

Main Points Raised

  • One participant inquires about the correct syntax for the read function when trying to open a file located on their desktop.
  • Another participant suggests that the syntax f = open(filename, mode) should work if the file path is specified correctly and asks if an IOError is being encountered.
  • A participant notes that they realized they could not open the file in IDLE but could do so with the actual program.
  • It is mentioned that using double backslashes or single forward slashes in the file path is necessary to avoid issues with escape characters in the filename.
  • A participant reflects on their forgetfulness regarding file path syntax in Python on Windows.

Areas of Agreement / Disagreement

Participants appear to agree on the need for correct file path syntax, but there is no consensus on the specific issues encountered by the original poster, as they have not confirmed the exact error they are facing.

Contextual Notes

There are limitations regarding the assumptions about the environment (IDLE vs. actual program) and the specific error messages that may arise when attempting to open the file.

Who May Find This Useful

New Python users, particularly those working on file handling and path specifications in a Windows environment, may find this discussion helpful.

zeion
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Homework Statement



Hi, this might be silly but I'm not sure what the syntax is for the read function...

I'm trying to open a file on my desktop, it is a text file called testfile.txt, how do I make python know where to find it?

I go:

f = open('C:\Users\Truman\Desktop\testfile.txt', 'r')

or

f = open('testfile.txt', 'r')

but neither works.

Does the file need to be in the same directory as where I installed Python?

Thanks.

Homework Equations





The Attempt at a Solution

 
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Code:
f = open(filename, mode)
should work if you specify the file path.

Are you getting an IOError? Also, if you directly use the file() constructor, can you open the file?
 
Ok I realized I couldn't open the file in IDLE.. but only with the actual program.
 
Either use double backslashes, '\\', or single forward slashes, '/'. Otherwise you have characters like '\t', which is the tab character, embedded in your filename.
 
Wow...it's been so long since I've used Python on Windows that I forgot about that.
 

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