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filter items in a python dictionary where keys contain a specific string
I'm a C coder developing something in python. I know how to do the following in C (and hence in C-like logic applied to python), but I'm wondering what the 'Python' way of doing it is.
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How to store a dataframe using Pandas
Right now I'm importing a fairly large CSV as a dataframe every time I run the script. Is there a good solution for keeping that dataframe constantly available in between runs so I don't have to spend all that time waiting for the script to run?
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How to add a new row to an empty numpy array
...ack
arr = np.array([])
arr = np.hstack((arr, np.array([1,2,3])))
# arr is now [1,2,3]
arr = np.vstack((arr, np.array([4,5,6])))
# arr is now [[1,2,3],[4,5,6]]
You also can use the np.concatenate function.
Cheers
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Why is #!/usr/bin/env bash superior to #!/bin/bash?
...bash 4) than it is for there to multiple env programs. ...Still true that knowing these differences does not lend well to beginners being able to delve in.
– Kevin
Jul 23 '19 at 15:10
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How does the following LINQ statement work?
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@M.C I don't know why you are asking this question. Whole answer was not given at a time. It was edited several times.
– Atish Dipongkor - MVP
Jul 18 '13 at 2:50
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How to validate IP address in Python? [duplicate]
... representations of IP addresses.
If you're using Python 3.3 or later, it now includes the ipaddress module:
>>> import ipaddress
>>> ipaddress.ip_address('127.0.0.1')
IPv4Address('127.0.0.1')
>>> ipaddress.ip_address('277.0.0.1')
Traceback (most recent call last):
Fil...
Configuring IntelliJ IDEA for unit testing with JUnit
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You don't know what ctr-shft-t maps to.
– Philip Rego
Jan 17 '19 at 16:10
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How does origin/HEAD get set?
...otes/origin/HEAD.)
I think the above answers what you actually wanted to know, but to go ahead and answer the question you explicitly asked... origin/HEAD is set automatically when you clone a repository, and that's about it. Bizarrely, that it's not set by commands like git remote update - I belie...
Installing MSBuild 4.0 without Visual Studio 2010
...looking for in order to install on our build servers so I'm downloading it now and I'll post any further findings after I check it out.
UPDATE: I can confirm that the link provided above does indeed install MSBuild along with other portions of what would constitute an SDK for .NET 4.0. I'm successf...
SLF4J: Failed to load class “org.slf4j.impl.StaticLoggerBinder”
... goes as also mentioned here - slf4j.org/manual.html But i get a new error now - Caused by: java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory
– david blaine
Apr 17 '13 at 7:10
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