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How can I safely create a nested directory?

...r versions of Python, I see two answers with good qualities, each with a small flaw, so I will give my take on it: Try os.path.exists, and consider os.makedirs for the creation. import os if not os.path.exists(directory): os.makedirs(directory) As noted in comments and elsewhere, there's a r...
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What do pty and tty mean?

... nikolaosmparoutisnikolaosmparoutis 39111 gold badge55 silver badges1313 bronze badges add a commen...
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Specifying and saving a figure with exact size in pixels

...): plt.figure(figsize=(800/my_dpi, 800/my_dpi), dpi=my_dpi) So you basically just divide the dimensions in inches by your DPI. If you want to save a figure of a specific size, then it is a different matter. Screen DPIs are not so important anymore (unless you ask for a figure that won't fit in ...
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res.sendFile absolute path

...pond with index.html on every request, because I'm using a star * to catch all files that weren't found in your static (public) directory; which is the most common use case for web-apps. Change to / to return the index only in the root path. ...
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How to send email attachments?

... best answer for me but there is a small error: replace import pathlibwith from pathlib import Path – AleAve81 Apr 29 at 20:38 ...
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How do i find out what all symbols are exported from a shared object?

I have a shared object(dll). How do i find out what all symbols are exported from that? 9 Answers ...
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Is PowerShell ready to replace my Cygwin shell on Windows? [closed]

... dose of respect for that community.) What I found was that this didn't really help much. The reason for that is that AWK/grep/sed don't work against COM, WMI, ADSI, the Registry, the certificate store, etc., etc. In other words, UNIX is an entire ecosystem self-tuned around text files. As such, t...
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How to call an external command?

How do you call an external command (as if I'd typed it at the Unix shell or Windows command prompt) from within a Python script? ...
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how to solve “ruby installation is missing psych” error?

I used rvm to install ruby 1.9.3. even though it was successfully installed, it complained about libyaml. and now every time i wanna install a gem (say rails) this warning shows up: ...
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FFmpeg on Android

...There's a lot of documentation out there on how to work with the NDK. Basically you'll need to write some C/C++ code to export the functionality you need out of ffmpeg into a library java can interact with through JNI. The NDK allows you to easily link against the static libraries you've generated i...