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Import multiple csv files into pandas and concatenate into one DataFrame
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If you have same columns in all your csv files then you can try the code below.
I have added header=0 so that after reading csv first row can be assigned as the column names.
import pandas as pd
import glob
path = r'C:\DRO\...
How do I clone a generic List in Java?
...ut it is worth noting that ArrayList.clone will perform a shallow copy, so if there were mutable objects in the list, they will not be cloned (and changing one in one list will change that one in the other list as well.
– pkaeding
Sep 10 '08 at 18:25
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Is it ok to use dashes in Python files when trying to import them?
...ave short, all-lowercase names. Underscores can be used in the module name if it improves readability. Python packages should also have short, all-lowercase names, although the use of underscores is discouraged.
Since module names are mapped to file names, and some file systems are case insensitive ...
Best way to convert strings to symbols in hash
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Ah, sorry for being unclear - inject doesn't modify the caller. You need to do my_hash = my_hash.inject({}){|memo,(k,v)| memo[k.to_sym] = v; memo}
– Sarah Mei
Apr 29 '09 at 19:06
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HttpServletRequest - how to obtain the referring URL?
...s a client-controlled value and can thus be spoofed to something entirely different or even removed. Thus, whatever value it returns, you should not use it for any critical business processes in the backend, but only for presentation control (e.g. hiding/showing/changing certain pure layout parts) a...
Rollback to an old Git commit in a public repo
How can I go about rolling back to a specific commit in git ?
11 Answers
11
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What's the difference between `1L` and `1`?
...en seen the symbol 1L (or 2L , 3L , etc) appear in R code. Whats the difference between 1L and 1 ? 1==1L evaluates to TRUE . Why is 1L used in R code?
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raw_input function in Python
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name = raw_input("What is your name? ")
print "Hello, %s." % name
This differs from input() in that the latter tries to interpret the input given by the user; it is usually best to avoid input() and to stick with raw_input() and custom parsing/conversion code.
Note: This is for Python 2.x
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HTTP Error 500.19 and error code : 0x80070021
...(IIS Management Console and Management Service), Windows Authentication - if you are using any of it
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Is Response.End() considered harmful?
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If you had employed an exception logger on your app, it will be watered down with the ThreadAbortExceptions from these benign Response.End() calls. I think this is Microsoft's way of saying "Knock it off!".
I would only use...