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Efficiently updating database using SQLAlchemy ORM
...sh()).
I've found that at times doing a large query and then iterating in python can be up to 2 orders of magnitude faster than lots of queries. I assume that iterating over the query object is less efficient than iterating over a list generated by the all() method of the query object.
[Please no...
App Inventor 2 扩展 · App Inventor 2 中文网
... 我要 分享 扫码分享到朋友圈 顶部 var qrcode = new QRCode("qrcode", { text: window.location.href + "?f=share", //URL地址 width: 150, height: 150, colorDark: '#000000', //二维码颜色 colorLight: "#ffffff" ...
Regular expression for first and last name
...me special characters like hyphens, spaces and apostrophes. I've tested in python and it supports the characters below:
^[\w'\-,.][^0-9_!¡?÷?¿/\\+=@#$%ˆ&*(){}|~<>;:[\]]{2,}$
Characters supported:
abcdefghijklmnopqrstwxyz
ABCDEFGHIJKLMNOPQRSTUVWXYZ
áéíóúäëïöüÄ'
陳大文
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Using an ORM or plain SQL? [closed]
...e been writing plain SQL, primarily for MySQL. Though I have used ORMs in python like SQLAlchemy , I didn't stick with them for long. Usually it was either the documentation or complexity (from my point of view) holding me back.
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How to create a remote Git repository from a local one?
...suming you have already setup and used git using ssh keys, I wrote a small Python script, which when executed from a working directory will set up a remote and initialize the directory as a git repo. Of course, you will have to edit script (only once) to tell it server and Root path for all reposito...
difference between socket programming and Http programming
... What do you mean by language? A java application can communicate with a Python application via sockets for example
– Adam Hughes
Sep 7 '17 at 14:34
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Simultaneously merge multiple data.frames in a list
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Another question provides a python implementation: list of pandas data frames dfs = [df1, df2, df3] then reduce(pandas.merge, dfs).
– Paul Rougieux
Mar 18 '19 at 13:45
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Git ignore file for Xcode projects
...userstate
project.xcworkspace/
xcuserdata/
# Generated files
*.o
*.pyc
#Python modules
MANIFEST
dist/
build/
# Backup files
*~.nib
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Why do you not use C for your web apps?
...cks of C and lose the advantages of a managed environment like Java, .NET, Python, Perl or other languages.
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Regular expression matching a multiline block of text
I'm having a bit of trouble getting a Python regex to work when matching against text that spans multiple lines. The example text is ('\n' is a newline)
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