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Replace all non-alphanumeric characters in a string
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Random row selection in Pandas dataframe
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df_0.7 is not a valid name. Moreover, I suggest replacing df_rest = df.loc[~df.index.isin(df_0_7.index)] with df_rest = df.loc[df.index.difference(df_0_7.index)].
– Pietro Battiston
May 1 '18 at 15:24
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psql: FATAL: role “postgres” does not exist
...tgres.
You can make your local install look a bit more traditional and avoid these problems by doing a one time:
/Applications/Postgres.app/Contents/Versions/9.*/bin/createuser -s postgres
which will make those FATAL: role "postgres" does not exist go away.
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Ruby replace string with captured regex pattern
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Note that this only works if the replacement string is inside single quotes. I wasted 5 minutes figuring that out.
– Vicky Chijwani
Feb 9 '13 at 0:30
7
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Skip Git commit hooks
...m the filesystem
just in case the pre-commit hook has updated it in the middle; this
has been optimized out when we know we do not run the pre-commit hook.
Davi Lima points out in the comments the git cherry-pick does not support --no-verify.
So if a cherry-pick triggers a pre-commit hook, y...
How to crop an image using PIL?
... first 30 rows and last 30 rows from the given image. I have searched but did not get the exact solution. Does somebody have some suggestions?
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iterating over each character of a String in ruby 1.8.6 (each_char)
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How to determine why visual studio might be skipping projects when building a solution
...be removed) and re-adding them to the solution.
– Hamid Mayeli
May 20 '19 at 14:33
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How do I use Nant/Ant naming patterns?
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Naming of enums in Java: Singular or Plural?
...xample:
public enum Day {
SUNDAY, MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY
}
class Appointment {
private Day day;
public void setDay(Day day) {
this.day = day;
}
}
In singular form you see clearly the intention of the day attribute. "day" its the day of the week this appointme...