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我的待办清单 · App Inventor 2 中文网

... 关键设置 文本输入框 文本输入框_任务 输入任务文字 按钮 按钮_添加 文本:添加 按钮 按钮_完成 文本:完成所选 按钮 按钮_清空 文本...
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How to find out which package version is loaded in R?

...plish that. > sessionInfo() R version 2.15.0 (2012-03-30) Platform: x86_64-pc-linux-gnu (64-bit) locale: [1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8 [5] LC_MONETARY=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8 LC_PAPER=C ...
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jsonify a SQLAlchemy result set in Flask [duplicate]

...u actually haven't executed your query. Try following: return jsonify(json_list = qryresult.all()) [Edit]: Problem with jsonify is, that usually the objects cannot be jsonified automatically. Even Python's datetime fails ;) What I have done in the past, is adding an extra property (like serializ...
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Why do people use __(double underscore) so much in C++

...mming in C++, Rules and Recommendations : The use of two underscores (`__') in identifiers is reserved for the compiler's internal use according to the ANSI-C standard. Underscores (`_') are often used in names of library functions (such as "_main" and "_exit"). In order to avoid collisions...
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How to make a phone call in android and come back to my activity when the call is done?

...ener actions to wait for a the call to start (wait until changed from PHONE_STATE_OFFHOOK to PHONE_STATE_IDLE again) and then write some code to bring your app back up on the IDLE state. you may need to run the listener in a service to ensure it stays up and your app is restarted. some example c...
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Setting the selected value on a Django forms.ChoiceField

...e initial value when you instantiate the form: form = MyForm(initial={'max_number': '3'}) share | improve this answer | follow | ...
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How do I migrate a model out of one django app and into a new one?

...on and specific: myproject/ |-- common | |-- migrations | | |-- 0001_initial.py | | `-- 0002_create_cat.py | `-- models.py `-- specific |-- migrations | |-- 0001_initial.py | `-- 0002_create_dog.py `-- models.py Now we want to move model common.models.cat to specif...
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Split Python Flask app into multiple files

...like this: Main.py from flask import Flask from AccountAPI import account_api app = Flask(__name__) app.register_blueprint(account_api) @app.route("/") def hello(): return "Hello World!" if __name__ == "__main__": app.run() AccountAPI.py from flask import Blueprint account_api = Bl...
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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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python design patterns [closed]

...for their existence. It's nothing more than class Null(object): def __init__(self, *args, **kwargs): "Ignore parameters." return None def __call__(self, *args, **kwargs): "Ignore method calls." return self def __getattr__(self, mname): "Ignore...