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How do I check the difference, in seconds, between two dates?

There has to be an easier way to do this. I have objects that want to be refreshed every so often, so I want to record when they were created, check against the current timestamp, and refresh as necessary. ...
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How to print matched regex pattern using awk?

Using awk , I need to find a word in a file that matches a regex pattern. 8 Answers ...
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How do I convert a string to a double in Python?

I would like to know how to convert a string containing digits to a double. 3 Answers ...
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Cleanest and most Pythonic way to get tomorrow's date?

What is the cleanest and most Pythonic way to get tomorrow's date? There must be a better way than to add one to the day, handle days at the end of the month, etc. ...
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Remove 'a' from legend when using aesthetics and geom_text

How can I can remove the letter 'a' from the legend generated by this code? If I remove the geom_text , then the 'a' letter will not show in the legend. I want to keep geom_text , though. ...
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iterating over each character of a String in ruby 1.8.6 (each_char)

I am new to ruby and currently trying to operate on each character separately from a base String in ruby. I am using ruby 1.8.6 and would like to do something like: ...
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How I can I lazily read multiple JSON values from a file/stream in Python?

I'd like to read multiple JSON objects from a file/stream in Python, one at a time. Unfortunately json.load() just .read() s until end-of-file; there doesn't seem to be any way to use it to read a single object or to lazily iterate over the objects. ...
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How do you generate dynamic (parameterized) unit tests in python?

I have some kind of test data and want to create a unit test for each item. My first idea was to do it like this: 25 Answer...
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How to read a file in reverse order?

How to read a file in reverse order using python? I want to read a file from last line to first line. 21 Answers ...
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What does the star operator mean, in a function call?

What does the * operator mean in Python, such as in code like zip(*x) or f(**k) ? 5 Answers ...