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How do you log server errors on django sites
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Note that using logging.exception('Some message') with python's standard logging module works just fine in a sginal handler for got_request_exception, if all you are looking to do is log out stack traces. In other words, the traceback is still available in got_request_exception....
Why does `True == False is False` evaluate to False? [duplicate]
...ntation:
5.9. Comparisons
Unlike C, all comparison operations in Python have the same priority, which is lower than that of any arithmetic, shifting or bitwise operation. Also unlike C, expressions like a < b < c have the interpretation that is conventional in mathematics:
comparis...
Java 8 Stream and operation on arrays
I have just discovered the new Java 8 stream capabilities. Coming from Python, I was wondering if there was now a neat way to do operations on arrays like summing, multiplying two arrays in a "one line pythonic" way ?
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Iterate over model instance field names and values in template
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You can use Django's to-python queryset serializer.
Just put the following code in your view:
from django.core import serializers
data = serializers.serialize( "python", SomeModel.objects.all() )
And then in the template:
{% for instance in dat...
How do I set the value property in AngularJS' ng-options?
...easiest or beautiful syntax. This syntax is kind of an extended version of Python's list comprehensions and knowing that helps me to remember the syntax very easily. It's something like this:
Python code:
my_list = [x**2 for x in [1, 2, 3, 4, 5]]
> [1, 4, 9, 16, 25]
# Let people to be a list o...
How can I map True/False to 1/0 in a Pandas DataFrame?
I have a column in python pandas DataFrame that has boolean True/False values, but for further calculations I need 1/0 representation. Is there a quick pandas/numpy way to do that?
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Makefile经典教程（入门必备） - C/C++ - 清泛网移动版 - 专注IT技能提升
...部分中讲述。
注释。Makefile中只有行注释，和UNIX的Shell脚本一样，其注释是用“#”字符，这个就像C/C++中的“//”一样。如果你要在你的Makefile中使用“#”字符，可以用反斜框进行转义，如：“\#”。
最后，还值得一提...
Makefile经典教程（入门必备） - C/C++ - 清泛网移动版 - 专注IT技能提升
...部分中讲述。
注释。Makefile中只有行注释，和UNIX的Shell脚本一样，其注释是用“#”字符，这个就像C/C++中的“//”一样。如果你要在你的Makefile中使用“#”字符，可以用反斜框进行转义，如：“\#”。
最后，还值得一提...
Makefile经典教程（入门必备） - C/C++ - 清泛网移动版 - 专注IT技能提升
...部分中讲述。
注释。Makefile中只有行注释，和UNIX的Shell脚本一样，其注释是用“#”字符，这个就像C/C++中的“//”一样。如果你要在你的Makefile中使用“#”字符，可以用反斜框进行转义，如：“\#”。
最后，还值得一提...
Makefile经典教程（入门必备） - C/C++ - 清泛网移动版 - 专注IT技能提升
...部分中讲述。
注释。Makefile中只有行注释，和UNIX的Shell脚本一样，其注释是用“#”字符，这个就像C/C++中的“//”一样。如果你要在你的Makefile中使用“#”字符，可以用反斜框进行转义，如：“\#”。
最后，还值得一提...