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Pandas read_csv low_memory and dtype options
...erly deprecated, but it should be, since it does not actually do anything differently[source]
The reason you get this low_memory warning is because guessing dtypes for each column is very memory demanding. Pandas tries to determine what dtype to set by analyzing the data in each column.
Dtype Guessi...
Execute Python script via crontab
...e and follow the tutorial here.
Look at point 3 for a guide on how to specify the frequency.
Based on your requirement, it should effectively be:
*/10 * * * * /usr/bin/python script.py
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How do I get the list of keys in a Dictionary?
...e Key type being a string. var keyList = yourDictionary.Keys.ToList(); Or if you want to go nuts and not use var or Linq: - Type keyType = yourDictionary.GetType().GetGenericArguments()[0]; Type listType = typeof(List<>).MakeGenericType(keyType); IList keyList = (IList)Activator.CreateInsta...
How to create a backup of a single table in a postgres database?
...
with a slightly different sudo twist to this I ended up with a permission error on the file dump (logical enough since user postgres does not have write access on my directories) and I had an unknown flag error for --ignore-version. Prashan...
How to terminate a window in tmux?
...
Kent's response fully answered your question, however if you are looking to change tmux's configuration to be similar to GNU Screen, here's a tmux.conf that I've used to accomplish this:
# Prefix key
set -g prefix C-a
unbind C-b
bind C-a send-prefix
# Keys
bind k confirm kill-...
What is the difference between ? and Object in Java generics?
...Say you want to write a method that accepts maps from Strings to anything: If you would write
public void foobar(Map<String, Object> ms) {
...
}
you can't supply a HashMap<String, String>. If you write
public void foobar(Map<String, ?> ms) {
...
}
it works!
A thing s...
What is the best way to deal with the NSDateFormatter locale “feechur”?
...seems that NSDateFormatter has a "feature" that bites you unexpectedly: If you do a simple "fixed" format operation such as:
...
Why isn't Python very good for functional programming? [closed]
...not to say that it's bad, just that you have to work harder than you would if you switched to a language that promotes functional programming or switched to writing OO Python.
Here are the functional things I miss in Python:
Pattern matching
Tail recursion
Large library of list functions
Function...
No increment operator (++) in Ruby? [duplicate]
... Regarding point #3, since most things are objects, imagine if Ruby allowed you to do this: 1++ 1+2 # Would not be 3!
– Johntron
Feb 5 '13 at 13:46
...
Android: open activity without save into the stack
...ddFlags(Intent.FLAG_ACTIVITY_NO_HISTORY); instead. There is no functional difference.
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