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django syncdb and an updated model
...o python manage.py syncdb , it doesn't add the new field to the database for the model. How can I fix this ?
7 Answers
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How to clone all repos at once from GitHub?
I have a company GitHub account and I want to back up all of the repositories within, accounting for anything new that might get created for purposes of automation. I was hoping something like this:
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How do I iterate through each element in an n-dimensional matrix in MATLAB?
...dimensional matrix in MATLAB. The problem is, I don't know how to do this for an arbitrary number of dimensions. I know I can say
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“for line in…” results in UnicodeDecodeError: 'utf-8' codec can't decode byte
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As suggested by Mark Ransom, I found the right encoding for that problem. The encoding was "ISO-8859-1", so replacing open("u.item", encoding="utf-8") with open('u.item', encoding = "ISO-8859-1") will solve the problem.
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Display number with leading zeros
...nd Python 3) you can do:
print "%02d" % (1,)
Basically % is like printf or sprintf (see docs).
For Python 3.+, the same behavior can also be achieved with format:
print("{:02d}".format(1))
For Python 3.6+ the same behavior can be achieved with f-strings:
print(f"{1:02d}")
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Duplicate AssemblyVersion Attribute
I have a project that generates following error on compilation:
21 Answers
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What belongs in an educational tool to demonstrate the unwarranted assumptions people make in C/C++?
I'd like to prepare a little educational tool for SO which should help beginners (and intermediate) programmers to recognize and challenge their unwarranted assumptions in C, C++ and their platforms.
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Handling an empty UITableView. Print a friendly message
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UITableView's backgroundView property is your friend.
In viewDidLoad or anywhere that you reloadData you should determine if there your table is empty or not and update the UITableView's backgroundView property with a UIView containing a UILabel or just set it to nil. That's it.
It is of cou...
keytool error :java.io.IoException:Incorrect AVA format
...hen I have been trying to sign the application I have got the following error. Can anyone help me on this issue?
8 Answers
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method overloading vs optional parameter in C# 4.0 [duplicate]
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One good use case for 'Optional parameters' in conjunction with 'Named Parameters' in C# 4.0 is that it presents us with an elegant alternative to method overloading where you overload method based on the number of parameters.
For example say ...