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What to put in a python module docstring? [closed]

... NAME x - This module does blah blah. FILE /tmp/x.py CLASSES __builtin__.object Blah class Blah(__builtin__.object) | This class does blah blah. | | Data and other attributes defined here: | | __dict__ = <dictproxy object> | ...
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putting current class as return type annotation [duplicate]

...he annotations at function definition time. Instead, they are preserved in __annotations__ in string form. This is called Postponed Evaluation of Annotations, introduced in PEP 563. Also note: Deprecation policy Starting with Python 3.7, a __future__ import is required to use the descri...
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Convert decimal to binary in python [duplicate]

...inary equivalent? I am able to convert binary to decimal using int('[binary_value]',2), so any way to do the reverse without writing the code to do it myself? ...
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bpftrace教程【官方】 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

bpftrace教程【官方】bpftrace_tutorial该教程通过12个简单小节帮助你了解bpftrace的使用。每一小节都是一行的命令,你可以立马运行并看到运行效果。该教程系列用来介绍bpftrace的概念。关于bpftrace的完整参考,见bpftr 该教程通过12...
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Dictionaries and default values

...collections import defaultdict a = defaultdict(lambda: "default", key="some_value") a["blabla"] => "default" a["key"] => "some_value" You can pass any ordinary function instead of lambda: from collections import defaultdict def a(): return 4 b = defaultdict(a, key="some_value") b['absent...
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What is the difference between save and insert in Mongo DB?

...is essentially the same. save behaves differently if it is passed with an "_id" parameter. For save, If the document contains _id, it will upsert querying the collection on the _id field, If not, it will insert. If a document does not exist with the specified _id value, the save() method performs a...
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Why do we need virtual functions in C++?

...s to more general). Visa-versa you need an explicit cast, usually a dynamic_cast. Anything else - very prone to undefined behavior so make sure you know what you're doing. To the best of my knowledge, this has not changed since before even C++98. – Steve314 Jun...
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Do I need to disable NSLog before release Application?

...Debug configuration add a value to "Preprocessor Macros" value like: DEBUG_MODE=1 Make sure you only do this for the Debug configuration and not for Beta or Release versions. Then in a common header file you can do something like: #ifdef DEBUG_MODE #define DLog( s, ... ) NSLog( @"<%p %@:(%d)&...
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log messages appearing twice with Python Logging

... You are calling configure_logging twice (maybe in the __init__ method of Boy) : getLogger will return the same object, but addHandler does not check if a similar handler has already been added to the logger. Try tracing calls to that method and eli...
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How do I get Flask to run on port 80?

...link to the official documentation about setting up Flask with Apache + mod_wsgi. Edit 1 - Clarification for @Djack Proxy HTTP traffic to Flask through apache2 When a request comes to the server on port 80 (HTTP) or port 443 (HTTPS) a web server like Apache or Nginx handles the connection of ...