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How to disable GCC warnings for a few lines of code
... that in GCC you can override per file compiler flags . How can I do this for "next line", or with push/pop semantics around areas of code using GCC?
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__attribute__ - C/C++ - 清泛网 - 专注C/C++及内核技术
...好的方式。下面介绍几个常见的属性参数。
__attribute__ format
该__attribute__属性可以给被声明的函数加上类似printf或者scanf的特征，它可以使编译器检查函数声明和函数实际调用参数之间的格式化字符串是否匹配。该功能十分有...
import module from string variable
I'm working on a documentation (personal) for nested matplotlib (MPL) library, which differs from MPL own provided, by interested submodule packages. I'm writing Python script which I hope will automate document generation from future MPL releases.
I selected interested submodules/packages and wan...
Explaining Python's '__enter__' and '__exit__'
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@Grief : For 2 reasons, In my opinion, 1) i won't be able to call other methods on self object as explained here : stackoverflow.com/questions/38281853/… 2) self.XYZ is just part of self object and returning handle only to just tha...
Split Python Flask app into multiple files
...s"
If this is an option, you might consider using different URL prefixes for the different APIs/Blueprints in order to cleanly separate them. This can be done with a slight modification to the above register_blueprint call:
app.register_blueprint(account_api, url_prefix='/accounts')
For further...
Save classifier to disk in scikit-learn
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0.9526989426822482
Edit: in Python 3.8+ it's now possible to use pickle for efficient pickling of object with large numerical arrays as attributes if you use pickle protocol 5 (which is not the default).
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Stop Mongoose from creating _id property for sub-document array items
If you have subdocument arrays, Mongoose automatically creates ids for each one. Example:
6 Answers
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Add a prefix to all Flask routes
...TION_ROOT"] = "/abc/123"
@app.route("/")
def index():
return "The URL for this page is {}".format(url_for("index"))
# Will return "The URL for this page is /abc/123/"
Setting the APPLICATION_ROOT config value simply limit Flask's session cookie to that URL prefix. Everything else will be au...
Using property() on classmethods
I have a class with two class methods (using the classmethod() function) for getting and setting what is essentially a static variable. I tried to use the property() function with these, but it results in an error. I was able to reproduce the error with the following in the interpreter:
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String concatenation vs. string substitution in Python
...itution eludes me. As the string concatenation has seen large boosts in performance, is this (becoming more) a stylistic decision rather than a practical one?
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