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check if variable is dataframe

...rame Yes: isinstance(x, pd.DataFrame) And don't even think about if obj.__class__.__name__ = 'DataFrame': expect_problems_some_day() isinstance handles inheritance (see What are the differences between type() and isinstance()?). For example, it will tell you if a variable is a string (eithe...
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Is it possible to get the iOS 5.1 SDK for Xcode 4.2 on Snow Leopard?

...ered Mar 8 '12 at 6:26 Mick MacCallumMick MacCallum 122k4040 gold badges273273 silver badges274274 bronze badges ...
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gdb: how to print the current line or find the current line number?

...structions- so is tied to assembly concepts. What you are looking for is called de instruction pointer, i.e: The instruction pointer register points to the memory address which the processor will next attempt to execute. The instruction pointer is called ip in 16-bit mode, eip in 32-bit mode,an...
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Get selected subcommand with argparse

...s: >>> parser = argparse.ArgumentParser() >>> parser.add_argument('-g', '--global') >>> subparsers = parser.add_subparsers(dest="subparser_name") # this line changed >>> foo_parser = subparsers.add_parser('foo') >>> foo_parser.add_argument('-c', '--count...
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HashSet versus Dictionary w.r.t searching time to find if an item exists

...s for Dictionary is so fast that there is no benefit from using HashSet at all, in the OP's case. – EtherDragon Jul 27 '12 at 23:03 ...
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Python Threading String Arguments

...t list processThread.start() If you notice, from the stack trace: self.__target(*self.__args, **self.__kwargs) The *self.__args turns your string into a list of characters, passing them to the processLine function. If you pass it a one element list, it will pass that element as the first argum...
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Error in exception handler. - Laravel

It's a Laravel-install related question. I have a public-facing Unix server setup: 6 Answers ...
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Delete local Git branches after deleting them on the remote repo

...t long, you might want to add an alias to your .zshrc or .bashrc. Mine is called gbpurge (for git branches purge): alias gbpurge='git branch --merged | grep -Ev "(\*|master|develop|staging)" | xargs -n 1 git branch -d' Then reload your .bashrc or .zshrc: . ~/.bashrc or . ~/.zshrc ...
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When and why JPA entities should implement Serializable interface?

... This usually happens if you mix HQL and native SQL queries. In HQL, Hibernate maps the types you pass in to whatever the DB understands. When you run native SQL, then you must do the mapping yourself. If you don't, then the default m...
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Reloading the page gives wrong GET request with AngularJS HTML5 mode

... Server side Using this mode requires URL rewriting on server side, basically you have to rewrite all your links to entry point of your application (e.g. index.html) The reason for this is that when you first visit the page (/about), e.g. after a refresh, the browser has no way of knowing that t...