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Git: How to return from 'detached HEAD' state
...flog to find the hashes of previously checked out commits.
A shortcut command to get to your last checked out branch (not sure if this work correctly with detached HEAD and intermediate commits though) is git checkout -
sha...
How is Python's List Implemented?
Is it a linked list, an array? I searched around and only found people guessing. My C knowledge isn't good enough to look at the source code.
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MySQL error code: 1175 during UPDATE in MySQL Workbench
...update the column visited to give it the value 1. I use MySQL workbench, and I'm writing the statement in the SQL editor from inside the workbench. I'm writing the following command:
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How do you redirect to a page using the POST verb?
...irect somewhere, the HTTP "Location" header tells the browser where to go, and the browser makes a GET request for that page. You'll probably have to just write the code for your page to accept GET requests as well as POST requests.
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Do you have to put Task.Run in a method to make it async?
I'm trying to understand async await in the simplest form. I want to create a very simple method that adds two numbers for the sake of this example, granted, it's no processing time at all, it's just a matter of formulating an example here.
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Python Requests and persistent sessions
...n 2.5).
I have figured out how to submit data to a login form on a website and retrieve the session key, but I can't see an obvious way to use this session key in subsequent requests.
Can someone fill in the ellipsis in the code below or suggest another approach?
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How Do I 'git fetch' and 'git merge' from a Remote Tracking Branch (like 'git pull')
... Sure. If I've added a remote repository with 1000 branches to mine, and I ask what branches the remote has, it damn well better give me all 1000
– Gareth
Jun 11 '10 at 19:14
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How do you easily horizontally center a using CSS? [duplicate]
I'm trying to horizontally center a <div> block element on a page and have it set to a minimum width. What is the simplest way to do this? I want the <div> element to be inline with rest of my page. I'll try to draw an example:
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What is a PDB file?
What is a PDB file and how can I exclude it from the release folder when I rebuild my solution?
5 Answers
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Asking the user for input until they give a valid response
...put the input method in a while loop. Use continue when you get bad input, and break out of the loop when you're satisfied.
When Your Input Might Raise an Exception
Use try and except to detect when the user enters data that can't be parsed.
while True:
try:
# Note: Python 2.x users s...