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How to change a Git remote on Heroku

... If you're working on the heroku remote (default): heroku git:remote -a [app name] If you want to specify a different remote, use the -r argument: heroku git:remote -a [app name] -r [remote] EDIT: thanks to Алекс...
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Is there a standard way to list names of Python modules in a package?

...name): file, pathname, description = imp.find_module(package_name) if file: raise ImportError('Not a package: %r', package_name) # Use a set because some may be both source and compiled. return set([os.path.splitext(module)[0] for module in os.listdir(pathname) ...
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How does zip(*[iter(s)]*n) work in Python?

How does zip(*[iter(s)]*n) work? What would it look like if it was written with more verbose code? 6 Answers ...
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Combine two columns of text in pandas dataframe

... if both columns are strings, you can concatenate them directly: df["period"] = df["Year"] + df["quarter"] If one (or both) of the columns are not string typed, you should convert it (them) first, df["period"] = df["Year"]...
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Undoing a 'git push'

...0 You may have receive.denyNonFastForwards set on the remote repository. If this is the case, then you will get an error which includes the phrase [remote rejected]. In this scenario, you will have to delete and recreate the branch. git push origin :alpha-0.3.0 git push origin cc4b63bebb6:refs/h...
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Parse config files, environment, and command-line arguments, to get a single collection of options

...es it so that, my_prog --foo=bar is equivalent to my_prog @baz.conf if @baz.conf is, --foo bar You can even have your code look for foo.conf automatically by modifying argv if os.path.exists('foo.conf'): argv = ['@foo.conf'] + argv args = argparser.parse_args(argv) The format of the...
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In Python, how do I use urllib to see if a website is 404 or 200?

...2.6) returns the HTTP status code that was sent with the response, or None if the URL is no HTTP URL. >>> a=urllib.urlopen('http://www.google.com/asdfsf') >>> a.getcode() 404 >>> a=urllib.urlopen('http://www.google.com/') >>> a.getcode() 200 ...
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How do I get the full path of the current file's directory?

... script being run: import os os.path.dirname(os.path.abspath(__file__)) If you mean the current working directory: import os os.path.abspath(os.getcwd()) Note that before and after file is two underscores, not just one. Also note that if you are running interactively or have loaded code from...
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Why does Sql Server keep executing after raiserror when xact_abort is on?

I just got surprised by something in TSQL. I thought that if xact_abort was on, calling something like 4 Answers ...
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Best way to add “current” class to nav in Rails 3

...on?(*action) action.include?(params[:action]) end Then you can use if controller?("homepage") && action?("index", "show") in your views or other helper methods… share | improve thi...