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Search for “does-not-contain” on a DataFrame in pandas
...word myword NaN
1 myword NaN myword
2 myword myword NaN
Now running the command:
~df["second"].str.contains(word)
I get the following error:
TypeError: bad operand type for unary ~: 'float'
I got rid of the NULL values using dropna() or fillna() first and retried the command...
Transpose/Unzip Function (inverse of zip)?
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Known as zip_longest for python3 users.
– zezollo
Mar 8 '16 at 9:02
1
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How do you debug MySQL stored procedures?
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Debugger for mysql was good but its not free. This is what i use now:
DELIMITER GO$
DROP PROCEDURE IF EXISTS resetLog
GO$
Create Procedure resetLog()
BEGIN
create table if not exists log (ts timestamp default current_timestamp, msg varchar(2048)) engine = myisam;
truncate ...
disable maven download progress indication
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It sets the level to WARN so you will still know if there's a problem. But I agree it would be nice to have a separate setting.
– Olivier Gérardin
Jun 14 at 20:59
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Superscript in CSS only?
... fixed their idious behavior to always screw up paragraph line height.
So now you can do:
<p>This is a line of text.</p>
<p>This is a line of text, <sub>with sub text.</sub></p>
<p>This is a line of text, <sup>with sup text.</sup></p&g...
How to reference a file for variables using Bash?
... accomplish this.
Running export and echo $ENV should be all you need to know about accessing variables. Accessing environment variables is done the same way as a local variable.
To set them, say:
export variable=value
at the command line. All scripts will be able to access this value.
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vim - How to delete a large block of text without counting the lines?
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Strange. I know it Works For Me (tm) here on Linux (vim 7.3.50) and with gVim on Windows. And judging by the other answers, works for other people. Maybe some settings in your .vimrc is making it act up?
– Mat
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Do the JSON keys have to be surrounded by quotes?
...r examples, instead of typing obj in the console, try JSON.stringify(obj). Now you will see a valid JSON representation of the object, complete with quoted key name. Conversely, to see if a string is valid JSON, try JSON.parse(string). If the keys are not quoted, this will throw an exception. For ex...
How to dynamically insert a tag via jQuery after page load?
... @Reddy Great comment. This was posted in October 2010, I'm sure by now this method is no longer a valid/recommended approach, users have to proceed at their own discretion.
– Bassem
Feb 9 '16 at 23:19
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Does MySQL foreign_key_checks affect the entire database?
...r. Even when you enable the checks afterwards, there will be no error. You now have a table with inconsistent data, even though there is a FK. As such, the existence of a FK is no guarantee of database consistency, unless it was added while FK checks were on.
– Bouke Versteegh...