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Python - write() versus writelines() and concatenated strings
...ou provide a list of strings, it will raise an exception (by the way, show errors to us!).
writelines(arg) expects an iterable as argument (an iterable object can be a tuple, a list, a string, or an iterator in the most general sense). Each item contained in the iterator is expected to be a string....
Creating an empty list in Python
...ny list, and if I append something else, e.g.
t = t.append(2)
I get the error "'NoneType' object has no attribute 'append'". If, however, I create the list by
t = list() # explicit instantiation
then it works fine.
sh...
Redirecting to URL in Flask
... redirecting to any url. Futhermore, you can abort a request early with an error code with abort:
from flask import abort, Flask, redirect, url_for
app = Flask(__name__)
@app.route('/')
def hello():
return redirect(url_for('hello'))
@app.route('/hello'):
def world:
abort(401)
By defaul...
Django TemplateDoesNotExist?
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I had an embarrassing problem...
I got this error because I was rushing and forgot to put the app in INSTALLED_APPS. You would think Django would raise a more descriptive error.
share
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How to modify the keyboard shortcuts in Eclipse IDE?
Title more or less says it all. Specifically, I've become increasingly annoyed that in order to run an ant script I have to use Alt + Shift + x , q . But I think If I had this power I would many things I would change the shortcuts for/add shortcuts for things that don't currently have them.
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How do I find the .NET version?
...ework Setup\NDP' -recurse | gp -name Version,Release -EA 0 |
where { $_.PSChildName -match '^(?!S)\p{L}'} | select PSChildName, Version, Release
The last command (8) will give you all versions, including .NET 4.5.
sha...
Determining the current foreground application from a background task or service
I wish to have one application that runs in the background, which knows when any of the built-in applications (messaging, contacts, etc) is running.
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How to read from stdin line by line in Node
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This doesn't work for me (node v9.2.0, Windows). Error: EISDIR: illegal operation on a directory, fstat at tryStatSync (fs.js:534:13)`
– AlexChaffee
Dec 18 '17 at 22:47
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How do I get the Git commit count?
I'd like to get the number of commits of my Git repository, a bit like SVN revision numbers.
21 Answers
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How to convert all text to lowercase in Vim
How do you convert all text in Vim to lowercase? Is it even possible?
10 Answers
10
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