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OSError: [Errno 2] No such file or directory while using python subprocess in Django

... Use shell=True if you're passing a string to subprocess.call. From docs: If passing a single string, either shell must be True or else the string must simply name the program to be executed without specifying any arguments. subpr...
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How to check whether a string is a valid HTTP URL?

...ut uriResult) && uriResult.Scheme == Uri.UriSchemeHttp; Or, if you want to accept both HTTP and HTTPS URLs as valid (per J0e3gan's comment): Uri uriResult; bool result = Uri.TryCreate(uriName, UriKind.Absolute, out uriResult) && (uriResult.Scheme == Uri.UriSchemeHttp || ...
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What is the difference between object keys with quotes and without quotes?

Is there any difference between 5 Answers 5 ...
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When to use , tag files, composite components and/or custom components?

... What is the difference between those approaches? Facelet templates Use Facelet templates (as in <ui:composition>, <ui:include> and <ui:decorate>) if you want to split main page layout fragments into reuseable templates....
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How can bcrypt have built-in salts?

...rom the input password, cost and salt. Encrypt the same well-known string. If the generated cipher text matches the stored cipher text, the password is a match. Bcrypt operates in a very similar manner to more traditional schemes based on algorithms like PBKDF2. The main difference is its use of a ...
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How to check if object (variable) is defined in R?

I'd like to check if some variable is defined in R - without getting an error. How can I do this? 6 Answers ...
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Why is parenthesis in print voluntary in Python 2.7?

... a Tuple. This special treatment of the print statement enables it to act differently if there is a trailing , or not. Happy coding. *This print behavior in Python 2 can be changed to that of Python 3: from __future__ import print_function ...
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When to use dynamic vs. static libraries

... dynamic ( .dll , .so ) and static ( .lib , .a ) libraries. What is the difference between them and when is it appropriate to use which? ...
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Reformat XML in Visual Studio 2010

... to reformat an XML file while viewing it Visual Studio 2010. For example, if you open a generated app.config file, it might look like: ...
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Is there a built-in method to compare collections?

...whether two sequences are equal by comparing their elements by using a specified IEqualityComparer(T). You can't directly compare the list & the dictionary, but you could compare the list of values from the Dictionary with the list ...