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How to set environment variables in Python?

I need to set some environment variables in the Python script and I want all the other scripts that are called from Python to see the environment variables' set. ...
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How do I test a private function or a class that has private methods, fields or inner classes?

..., z); foo.privateField = value; This way your code remains type-safe and readable. No design compromises, no overexposing methods and fields for the sake of tests. If you have somewhat of a legacy Java application, and you're not allowed to change the visibility of your methods, the best wa...
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How does a PreparedStatement avoid or prevent SQL injection?

...g. But the input parameters will be sent to the database & appropriate cast/conversions will be applied prior to creating an actual SQL statement. To give you an example, it might try and see if the CAST/Conversion works. If it works, it could create a final statement out of it. SELECT * Fr...
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How do I get the path and name of the file that is currently executing?

...vide an example? I've answered similar question using inspect.getabsfile() and it worked for all cases that I've tried. – jfs Apr 5 '14 at 17:04 4 ...
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How to avoid overflow in expr. A * B - C * D

...ere's a work-around that only relies on implementation-defined behavior of casting unsigned integer to signed integer. But this can be expected to work on almost every system today. (long long)((unsigned long long)A * B - (unsigned long long)C * D) This casts the inputs to unsigned long long wher...
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Open file in a relative location in Python

...thon code is executed in not known by prior windows directory say 'main' , and wherever code is installed when it runs it needs to access to directory 'main/2091/data.txt' . ...
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Difference between std::system_clock and std::steady_clock?

...eryPerformanceCounter(&counter); return time_point(duration(static_cast<rep>((double)counter.QuadPart / frequency.QuadPart * period::den / period::num))); } private: static bool is_inited; ...
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How can I safely create a nested directory?

...ant way to check if the directory a file is going to be written to exists, and if not, create the directory using Python? Here is what I tried: ...
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How do I programmatically determine operating system in Java?

... I'm using Windows 10 and yet os.name gives me Windows 8.1. Why is that? Where is this coming from? – Brian Feb 7 '16 at 19:59 ...
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`from … import` vs `import .` [duplicate]

... use os.open without destroying the # built in open() which returns file handles. share | improve this answer | follow | ...