Data inside the string became unusable in python

Question

I put a number into a file, but the next time I opened it with the Open() command, I put the number inside it, which was string, into a variable int() but the number was gone!!!

file = open('times.txt', 'r')  # wrong = 4
print(file.read())  # wrong = 4
wrong = list(file.read())  # there is a problem, when is str not problem but if int => wrong = 0
print(wrong)  # wrong = 0

zipa · Accepted Answer · 2021-03-23 14:05:08Z

3

Once you call read() on file for the first time the cursor is set to the end of the file.

Should you want to read the contents of file again you can use seek:

file.seek(0)

Which will return you to the beginning of the file.

answered Mar 23, 2021 at 14:05

zipa

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1 Comment

SethMMorton Over a year ago

It may be worth mentioning that saving the output in a variable is probably best if they plan on reading the content multiple times anyway (unless they expect the file to be huge).

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