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+--- Thread: Unexpected output write (/thread-7646.html)
Unexpected output write - minmanrox - Jan-19-2018
I've just taken up coding and have been teaching myself out of Simon Monk's "Programming the Raspberry Pi" book. On p79, he demonstrates how to write a file in the python shell. When I copy his code into my shell, instead of writing a file, it gives me the length of the string I tried to write.
I've tried different files, different variable names, restarting python, and trying different strings, but it's always the same result. I'm running python 3 on Raspbian.
My shell looks like this:
>>> f = open('test.txt', 'w')
>>> f.write('words')
5
>>>hoping you can help[email protected]
RE: Unexpected output write - Windspar - Jan-19-2018
That the right result. If you total every write. Then you know how many chars are in the file.
You have to close file. closing a file will flush data. Saving it to file.
If you don't close file. It a memory leak.
RE: Unexpected output write - Larz60+ - Jan-19-2018
better to use:
with open('test.txt', 'w') as f:
f.write(...)that way you don't have to remember to close as it's done automatically
RE: Unexpected output write - minmanrox - Jan-19-2018
Awesome makes sense. Thank you