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Change select box option background color
...ess the problem of how form elements should be presented to users period!
Read here: smashing magazine
Eventually, you will never find any technical article from w3c or other addressed to this topic. Styling form elements in particular select boxes is not fully supported however, you can drive aro...
How to remove the left part of a string?
...om ConfigParser import SafeConfigParser
config = SafeConfigParser()
config.read(filename) # requires section headers to be present
path = config.get(section, 'path', raw=1) # case-insensitive, no interpolation
Other options
str.split()
re.match()
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“Least Astonishment” and the Mutable Default Argument
...lt Parameter Values in Python.
I found it very clear, and I really suggest reading it for a better knowledge of how function objects work.
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Replacing blank values (white space) with NaN in pandas
...xporting the data from the CSV file it can be as simple as this :
df = pd.read_csv(file_csv, na_values=' ')
This will create the data frame as well as replace blank values as Na
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scipy.misc module has no attribute imread?
I am trying to read an image with scipy. However it does not accept the scipy.misc.imread part. What could be the cause of this?
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echo that outputs to stderr
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You could do this, which facilitates reading:
>&2 echo "error"
>&2 copies file descriptor #2 to file descriptor #1. Therefore, after this redirection is performed, both file descriptors will refer to the same file: the one file descriptor #2 was...
Determine which MySQL configuration file is being used
.../mysqld --verbose --help | grep -A 1 "Default options"
Default options are read from the following files in the given order:
/etc/mysql/my.cnf ~/.my.cnf /usr/etc/my.cnf
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Double Negation in C++
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@Noldorin, I think it improves readability - if you know what it means, it is simple, neat and logical.
– jwg
Jun 4 '14 at 9:45
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How to replace multiple strings in a file using PowerShell
...by far the best approach I've seen so far. The only issue is that I had to read the entire file contents to a variable first in order to use the same source/destination file paths.
– angularsen
May 19 '15 at 11:25
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What is “2's Complement”?
...part, with Two's Complement . I want to understand it but everything I've read hasn't brought the picture together for me. I've read the wikipedia article and various other articles, including my text book .
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