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Installing Numpy on 64bit Windows 7 with Python 2.7.3 [closed]

...ggested. Nevertheless I had 2 easy to solve Problems in the beginning: "error: Unable to find vcvarsall.bat": This problem has been solved here. Although I did not find it at that time and instead installed the C++ Compiler for Python. Then the installation continued but failed because of an addi...
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What is the C++ function to raise a number to a power?

...ble, or long double version it should take, and you would get an ambiguity error. All three would need a conversion from int to floating point, and all three are equally costly! Therefore, be sure to have the first argument typed so it matches one of those three perfectly. I usually use double po...
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Replace transparency in PNG images with white background

...Magick "convert" operations, but either nothing happens at all or I get an error. I don't want to go to an intermediate JPG form because I don't want the artifacts. Of course it's easy to do this in Gimp or Photoshop or whatever, but I'd really rather script it from the command line because there ...
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Access an arbitrary element in a dictionary in Python

...e way : dict.keys() return a value in type : dict_keys(), we'll got an error when got 1st member of keys of dict by this way: dict.keys()[0] TypeError: 'dict_keys' object does not support indexing Finally, I convert dict.keys() to list @1st, and got 1st member by list splice method: list(dic...
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What is the difference between precision and scale?

... from dual; select cast (99.99999 as NUMBER(4,2)) from dual * ERROR at line 1: ORA-01438: value larger than specified precision allowed for this column 21:52:32 CB900@ASCEND1 > select version from v$instance; VERSION --------------------------------------------------- 12.1.0.2.0 ` ...
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iOS Detect 3G or WiFi

...t worked!!! Had to do some fixing up of the reachability files as they had errors for iOS5 in it - but I am so happy right now. Unfortunately I can only give you 1 up vote:-) – jwknz Oct 29 '11 at 20:19 ...
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How do I work around JavaScript's parseInt octal behavior?

... the ECMA-262 standard and isn't guaranteed to succeed w/o warnings and/or errors and/or a particular specified behavior. – Jason S May 11 '09 at 22:52  | ...
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How can I find where Python is installed on Windows?

... Error: "C:\WINDOWS\system32>import os 'import' is not recognized as an internal or external command, operable program or batch file." – David Spector Nov 25 '19 at 21:40 ...
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Given a URL to a text file, what is the simplest way to read the contents of the text file?

... It doesn't work: AttributeError: module 'urllib' has no attribute 'urlopen' – Iratzar Carrasson Bores Feb 16 '18 at 9:06 ...
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How can I install a local gem?

...: In some versions of ruby or rubygems, it don't work and fire alerts or error, you can put gems in other place but not get DRY, other alternative is using launch integrated command gem server and add the localhost url in gem sources, more information in: https://guides.rubygems.org/run-your...