大约有 40,000 项符合查询结果(耗时:0.0241秒) [XML]

https://stackoverflow.com/ques... 

How can I get the version defined in setup.py (setuptools) in my package?

...what your question appears to actually be asking), you can use: import pkg_resources # part of setuptools version = pkg_resources.require("MyProject")[0].version Store version string for use during install If you want to go the other way 'round (which appears to be what other answer authors her...
https://stackoverflow.com/ques... 

Difference between __str__ and __repr__?

What is the difference between __str__ and __repr__ in Python? 23 Answers 23 ...
https://stackoverflow.com/ques... 

How does deriving work in Haskell?

... Haskell Wiki: In this example we use the following Haskell code $(gen_render ''Body) to produce the following instance: instance TH_Render Body where render (NormalB exp) = build 'normalB exp render (GuardedB guards) = build 'guardedB guards The function gen_render above is d...
https://stackoverflow.com/ques... 

Return positions of a regex match() in Javascript?

... any, of the input word inside the String object String.prototype.matching_positions = function( _word, _case_sensitive, _whole_words, _multiline ) { /*besides '_word' param, others are flags (0|1)*/ var _match_pattern = "g"+(_case_sensitive?"i":"")+(_multiline?"m":"") ; var _bound = _whol...
https://stackoverflow.com/ques... 

How to capture stdout output from a Python function call?

...ager: from io import StringIO import sys class Capturing(list): def __enter__(self): self._stdout = sys.stdout sys.stdout = self._stringio = StringIO() return self def __exit__(self, *args): self.extend(self._stringio.getvalue().splitlines()) del se...
https://stackoverflow.com/ques... 

What is a clean, pythonic way to have multiple constructors in Python?

...d a definitive answer for this. As far as I know, you can't have multiple __init__ functions in a Python class. So how do I solve this problem? ...
https://stackoverflow.com/ques... 

Pass variables to Ruby script via command line

... opts.on('-n', '--sourcename NAME', 'Source name') { |v| options[:source_name] = v } opts.on('-h', '--sourcehost HOST', 'Source host') { |v| options[:source_host] = v } opts.on('-p', '--sourceport PORT', 'Source port') { |v| options[:source_port] = v } end.parse! dest_options = YAML.load_fi...
https://stackoverflow.com/ques... 

Exporting functions from a DLL with dllexport

... be included in all of the source files in your DLL project: #ifdef LIBRARY_EXPORTS # define LIBRARY_API __declspec(dllexport) #else # define LIBRARY_API __declspec(dllimport) #endif Then on a function that you want to be exported you use LIBRARY_API: LIBRARY_API int GetCoolInteger(); In you...
https://stackoverflow.com/ques... 

Get class name of django model

... Try Book.__name__. Django models are derived from the ModelBase, which is the Metaclass for all models. share | improve this answer...
https://stackoverflow.com/ques... 

How to validate an e-mail address in swift?

... I would use NSPredicate: func isValidEmail(_ email: String) -> Bool { let emailRegEx = "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,64}" let emailPred = NSPredicate(format:"SELF MATCHES %@", emailRegEx) return emailPred.evaluate(with: email) ...