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How do I resize an image using PIL and maintain its aspect ratio?
...humbnail.
Below is an (edited) example from the PIL documentation.
import os, sys
import Image
size = 128, 128
for infile in sys.argv[1:]:
outfile = os.path.splitext(infile)[0] + ".thumbnail"
if infile != outfile:
try:
im = Image.open(infile)
im.thumbnail(s...
Validating parameters to a Bash script
... as a commentar). i did "$#" to fix it. second, the regex also matches "foo123bar". i fixed it by doing ^[0-9]+$. you may also fix it by using grep's -x option
– Johannes Schaub - litb
Mar 31 '09 at 1:21
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How to use sidebar with the keyboard in Sublime Text 2 and 3?
...ut for removing the projects from the sidebar?
– depz123
Jun 19 '13 at 18:46
5
Can I invoke conte...
App Inventor 2 向心力实验App - 探究向心力F与角速度ω、半径r、质量m的关...
...档
文档版本：2026.05 | 作者：App Inventor 2 中文网 www.fun123.cn
原文来源：MIT App Inventor 官方文档 | MIT App Inventor GitHub
MIT App Inventor 官方文档采用 CC BY-SA 4.0 授权。本文档由 ai2claw 整理，仅供学习参考。
Only get hash value using md5sum (without filename)
...he - indicates the source as stdin). – You must tell bash to capture those words into a string, using Command Substitution: $( command ). – The ( brackets ) produce a bash array with 2 elements. However, you must assign that array construct ( … ) to an variable name; hence, using md5 as the...
How to determine the Boost version on a system?
Is there a quick way to determine the version of the Boost C++ libraries on a system?
11 Answers
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How to automatically add user account AND password with a Bash script?
...
123
You can run the passwd command and send it piped input. So, do something like:
echo thePassw...
Reload Flask app when template file changes
...ment to Flask().run(), a collection of filenames to watch: any change on those files will trigger the reloader.
Example:
from os import path, walk
extra_dirs = ['directory/to/watch',]
extra_files = extra_dirs[:]
for extra_dir in extra_dirs:
for dirname, dirs, files in walk(extra_dir):
...
Using an SSH keyfile with Fabric
How do you configure fabric to connect to remote hosts using SSH keyfiles (for example, Amazon EC2 instances)?
8 Answers
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HTML5: number input type that takes only integers?
... This is important to accept float numbers and repeat . only once, e.g. 123.556 can be writen.
– Tarek Kalaji
Jan 28 '17 at 15:54
9
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