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Only get hash value using md5sum (without filename)
...ng output on Mac MD5 (/Users/hello.txt) = 24811012be8faa36c8f487bbaaadeb71 and your code returns MD5.
– alper
Aug 3 '18 at 21:06
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Batch file to delete files older than N days
...ll files older than 7 days in a batch file. I've searched around the web, and found some examples with hundreds of lines of code, and others that required installing extra command line utilities to accomplish the task.
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Change from SQLite to PostgreSQL in a fresh Rails project
I have a rails app that's databases are in SQLite (The dev and production). Since I am moving to heroku, I want to convert my database to PostgreSQL.
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JavaScript: replace last occurrence of text in a string
... two ways to make a RegExp instance: the constructor (new RegExp(string)), and the inline syntax (/something/). You don't need the "/" characters when you're using the RegExp constructor.
– Pointy
Mar 21 '15 at 21:26
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Circular list iterator in Python
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(Loops forever, obviously)
In order to manually advance the iterator and pull values from it one by one, simply call next(pool):
>>> next(pool)
'a'
>>> next(pool)
'b'
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Split a string on whitespace in Go?
...int) []string
Split slices s into substrings separated by the expression and returns
a slice of the substrings between those expression matches.
The slice returned by this method consists of all the substrings
of s not contained in the slice returned by FindAllString. When called
on an expression...
How to test an Internet connection with bash?
... very nice... but of course assumes the box has wget. embedded devices and whatnot probably won't. ;)
– Eric Sebasta
Jun 8 '15 at 19:03
5
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How do I get the number of days between two dates in JavaScript?
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Here is a quick and dirty implementation of datediff, as a proof of concept to solve the problem as presented in the question. It relies on the fact that you can get the elapsed milliseconds between two dates by subtracting them, which coerc...
Rename specific column(s) in pandas
...' else x for x in df.columns]
Or, construct a mapping using a dictionary and perform the list-comprehension with it's get operation by setting default value as the old name:
col_dict = {'gdp': 'log(gdp)', 'cap': 'cap_mod'} ## key→old name, value→new name
df.columns = [col_dict.get(x, x) fo...
Filter by property
...perties, you have to load the object into Python to evaluate the property--and at that point, you've already done all the work to load it.
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