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Upgrade python in a virtualenv
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Based on this answer I wrote a little script (with full attribution): burgundywall.com/post/update-all-python-virtual-environments
– Kurt
Jan 28 '17 at 19:07
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Is there a way to get the XPath in Google Chrome?
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You can use $x in the Chrome javascript console. No extensions needed.
ex: $x("//img")
Also the search box in the web inspector will accept xpath
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Why does my JavaScript code receive a “No 'Access-Control-Allow-Origin' header is present on the req
I am trying to do authorization using JavaScript by connecting to the RESTful API built-in Flask . However, when I make the request, I get the following error:
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How to change plot background color?
...d is to manually set the default for the axis background color within your script (see Customizing matplotlib):
import matplotlib.pyplot as plt
plt.rcParams['axes.facecolor'] = 'black'
This is in contrast to Nick T's method which changes the background color for a specific axes object. Resetting ...
do N times (declarative syntax)
Is there a way in Javascript to write something like this easily:
22 Answers
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What does %~dp0 mean, and how does it work?
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The variable %0 in a batch script is set to the name of the executing batch file.
The ~dp special syntax between the % and the 0 basically says to expand the variable %0 to show the drive letter and path, which gives you the current directory containi...
How to use multiple AWS Accounts from the command line?
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You can write shell script to set corresponding values of environment variables for each account based on user input. Doing so, you don't need to create any aliases and, furthermore, tools like ELB tools, Auto Scaling Command Line Tools will wor...
How to change Git log date formats
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This works a treat! Using a simple bash script to export a csv, now I can i have columns for year, month, week etc. Love it.
– Jamie Taylor
Mar 9 '16 at 9:18
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How to create a hex dump of file containing only the hex characters without spaces in bash?
...er answers are preferable, but for a pure Bash solution, I've modified the script in my answer here to be able to output a continuous stream of hex characters representing the contents of a file. (Its normal mode is to emulate hexdump -C.)
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What does Python's eval() do?
... need for it. It is used on sites like codepad.org to allow you to execute scripts in a test environment. eval() can also be used to execute highly-dynamic code, but you should make yourself fully aware of the security and performance risks before using it.
– George Cummins
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