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RE error: illegal byte sequence on Mac OS X

...t a valid UTF-8 char. Note that, by contrast, GNU sed (Linux, but also installable on macOS) simply passes the invalid byte through, without reporting an error. Using the formerly accepted answer is an option if you don't mind losing support for your true locale (if you're on a US system and you ne...
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Installing python module within code

I need to install a package from PyPi straight within my script. Maybe there's some module or distutils ( distribute , pip etc.) feature which allows me to just execute something like pypi.install('requests') and requests will be installed into my virtualenv. ...
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Instagram how to get my user id from username?

...ow: https://www.instagram.com/{username}/?__a=1 E.g: This url will get all information about a user whose username is therock https://www.instagram.com/therock/?__a=1 Update i June-20-2019, the API is public now. No authentication required. Update in December-11-2018, I needed to confirm t...
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Setting the selected value on a Django forms.ChoiceField

...rying to assign the selected value to a ChoiceField. If you have already called super().__init__ in your Form class, you should update the form.initial dictionary, not the field.initial property. If you study form.initial (e.g. print self.initial after the call to super().__init__), it will contai...
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Rename multiple files in a directory in Python [duplicate]

...e script itself. Instead of using . as the dir, you could make a variable called dir and use that, then prepend dir to the filename. – styfle May 18 '11 at 5:53 18 ...
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Is “else if” a single keyword?

...er to Can you start a class name with a numeric digit? that spaces are not allowed in identifiers and so therefore else if can not be a single keyword but must be two separate keywords. share | impr...
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How can I convert JSON to CSV?

... First, your JSON has nested objects, so it normally cannot be directly converted to CSV. You need to change that to something like this: { "pk": 22, "model": "auth.permission", "codename": "add_logentry", "content_type": 8, "name": "Can add log entry"...
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What is the canonical way to check for errors using the CUDA runtime API?

...ag wiki , I see it is often suggested that the return status of every API call should checked for errors. The API documentation contains functions like cudaGetLastError , cudaPeekAtLastError , and cudaGetErrorString , but what is the best way to put these together to reliably catch and report err...
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How to obtain the number of CPUs/cores in Linux from the command line?

... Note that both of these will end up counting twice as many cores as actually exist if you're on a system with hyperthreading (e.g, P4, or Core i7). – duskwuff -inactive- Jun 26 '11 at 0:04 ...
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Is the C# static constructor thread safe?

... { mutex.WaitOne(); return instance; } // Each call to Acquire() requires a call to Release() public static void Release() { mutex.ReleaseMutex(); } } share | ...