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There is no bitwise negation in Python (just the bitwise inverse operator ~ - but that is not equivalent to not). See also 6.6. Unary arithmetic and bitwise/binary operations and. PEP 8, the official Python style guide for the standard library also mentions two use-cases for is: Comparisons to singletons like None should always be done with is or is not, never the. I notice that I can do things like 2 << 5 to get 64 and 1000 >> 2 to get 250. Also I can use >> in print: print >>obj, "Hello world" What is happening here?

PEP 8, the official Python style guide for the standard library also mentions two use-cases for is: Comparisons to singletons like None should always be done with is or is not, never the. I notice that I can do things like 2 << 5 to get 64 and 1000 >> 2 to get 250. Also I can use >> in print: print >>obj, "Hello world" What is happening here? Python初学者的法宝，如果你想下载Python，最好还是在这个网址去下，不要想着用一些不明来源的安装包。 在这里，你不仅可以下载各种版本的Python源代码和安装程序，更有各种文献资. Go to the folder where Python is installed, e.g., in my case (Mac OS) it is installed in the Applications folder with the folder name 'Python 3.6'. Now double click on 'Install. I tried to install PySide but I got error from the powershell as follows: pip : The term 'pip' is not recognized as the name of a cmdlet, function, script file, or ...

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