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How can I find the first occurrence of a sub-string in a python string?

So if my string is "the dude is a cool dude". I'd like to find the first index of 'dude': 5 Answers ...
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Autoreload of modules in IPython [duplicate]

Is there a way to have IPython automatically reload all changed code? Either before each line is executed in the shell or failing that when it is specifically requested to. I'm doing a lot of exploratory programming using IPython and SciPy and it's quite a pain to have to manually reload each module...
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Generating all permutations of a given string

What is an elegant way to find all the permutations of a string. E.g. permutation for ba , would be ba and ab , but what about longer string such as abcdefgh ? Is there any Java implementation example? ...
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How do I put an already-running process under nohup?

I have a process that is already running for a long time and don't want to end it. 11 Answers ...
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How to replace a single word under cursor?

How do I replace a word under the cursor in Vim. 5 Answers 5 ...
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Convert object to JSON in Android

Is there a simple method to convert any object to JSON in Android? 6 Answers 6 ...
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How to increment a pointer address and pointer's value?

Let us assume, 5 Answers 5 ...
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How to write DataFrame to postgres table?

There is DataFrame.to_sql method, but it works only for mysql, sqlite and oracle databases. I cant pass to this method postgres connection or sqlalchemy engine. ...
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Why does typeof NaN return 'number'?

... 21 Answers 21 Active ...
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How to sum a variable by group

I have a data frame with two columns. First column contains categories such as "First", "Second", "Third", and the second column has numbers that represent the number of times I saw the specific groups from "Category". ...