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Python concatenate text files
...noted in the comments, and discussed in another post, fileinput for Python 2.7 will not work as indicated. Here slight modification to make the code Python 2.7 compliant
with open('outfilename', 'w') as fout:
fin = fileinput.input(filenames)
for line in fin:
fout.write(line)
fin...
How do I run all Python unit tests in a directory?
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With Python 2.7 and higher you don't have to write new code or use third-party tools to do this; recursive test execution via the command line is built-in. Put an __init__.py in your test directory and:
python -m unittest discover <...
CSV file written with Python has blank lines between each row
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For compatibility between 2.6/2.7 and 3, you can use io.open with the newlines argument. If you're still writing in 2.x, that seems like a better choice anyway since it's forward compatible.
– jpmc26
Sep 27 '17 at 18...
pypi UserWarning: Unknown distribution option: 'install_requires'
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This worked for me. Was trying to install mako on Python 2.7.16. Got a similar Unknown Distribution option. Pip was OK but setuptools went to 41.0.1 from 40.6.2. Then Mako installed A-OK.
– Max Yaffe
Aug 11 '19 at 20:20
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FloatingActionButton 扩展：悬浮操作按钮扩展，可自定义颜色、大小、位置...
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How do I sort a dictionary by value?
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OrderedDict added to collections in 2.7. Sorting example shown at: docs.python.org/library/…
– monkut
Apr 24 '11 at 6:31
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“ImportError: No module named” when trying to run Python script
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Yep, perfect answer. That's needed in python 2.7, but note in the 3
– Agape Gal'lo
Nov 8 '16 at 14:03
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How can I convert JSON to a HashMap using Gson?
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With google's Gson 2.7 (probably earlier versions too, but I tested with the current version 2.7) it's as simple as:
Map map = gson.fromJson(jsonString, Map.class);
Which returns a Map of type com.google.gson.internal.LinkedTreeMap and works...
How to convert a PNG image to a SVG? [closed]
...nm # PNG to PNM
potrace file.pnm -s -o file.svg # PNM to SVG
Explain options
potrace -s => Output file is SVG
potrace -o file.svg => Write output to file.svg
Example
Input file = 2017.png
convert 2017.png 2017.pnm
Temporary file = 2017.pnm
potrace 2017.pnm -s -o 2017.svg
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How to capitalize the first letter in a String in Ruby
...want it to, it outputs мария instead of Мария.
If you're using Rails there's an easy workaround:
"мария".mb_chars.capitalize.to_s # requires ActiveSupport::Multibyte
Otherwise, you'll have to install the unicode gem and use it like this:
require 'unicode'
Unicode::capitalize("м...