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open() in Python does not create a file if it doesn't exist

... open a file as read/write if it exists, or if it does not, then create it and open it as read/write? From what I read, file = open('myfile.dat', 'rw') should do this, right? ...
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How to check if a variable is not null?

...n case for those wondering... This does not check for an empty string ("") and undefined. See my fiddle as reference: jsfiddle.net/b0tm7yaf – Barrosy Jan 18 '19 at 15:25 ...
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Create a .csv file with values from a Python list

...n the list into columns if each element is a list as well. This is pretty handy for outputting tables. – whatnick Oct 7 '14 at 5:22 6 ...
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Python, remove all non-alphabet chars from string

...r. Thats where my issues lies, I was comparing my results to given results and I was still off. I think that's my issue! Thanks // Hmm, I tried it with the newline char same results, I think there is another I am missing.. // Duhhh... Upper and lower case... // Thanks for all the help, works perfect...
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Returning JSON from PHP to JavaScript?

...rialising function. json_encode json_encode Please use that if you can and don't suffer Not Invented Here syndrome. share | improve this answer | follow | ...
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Unique constraint on multiple columns

...o I add a unique constraint for columns fcode, scode, dcode with t-sql and/or management studio ? fcode, scode, dcode must be unique together. ...
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Deleting a file in VBA

...; "") End Function I'll leave it to you to figure out the various error handling needed but these are among the error handling things I'd be considering: Check for an empty string being passed. Check for a string containing characters illegal in a file name/path 2.) How To Delete a File. Look...
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Does a finally block run even if you throw a new Exception?

In this code will someVar be set even if the catch block is executed and the second Exception is thrown? 6 Answers ...
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mkdir -p functionality in Python [duplicate]

...ution other than a system call. I am sure the code is less than 20 lines, and I am wondering if someone has already written it? ...
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How do I clone into a non-empty directory?

... NOTE: -t will set the upstream branch for you, if that is what you want, and it usually is. share | improve this answer | follow | ...