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open() in Python does not create a file if it doesn't exist

What is the best way to open a file as read/write if it exists, or if it does not, then create it and open it as read/write? From what I read, file = open('myfile.dat', 'rw') should do this, right? ...
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Check if a string matches a regex in Bash script

One of the arguments that my script receives is a date in the following format: yyyymmdd . 5 Answers ...
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Why use the yield keyword, when I could just use an ordinary IEnumerable?

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Objective-C: Reading a file line by line

What is the appropriate way of dealing with large text files in Objective-C? Let's say I need to read each line separately and want to treat each line as an NSString. What is the most efficient way of doing this? ...
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What's the difference between git clone --mirror and git clone --bare

The git clone help page has this to say about --mirror : 7 Answers 7 ...
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ASP.NET MVC: No parameterless constructor defined for this object

I was following Steven Sanderson's ' Pro ASP.NET MVC Framework ' book. On page 132, in accordance with the author's recommendation, I downloaded the ASP.NET MVC Futures assembly, and added it to my MVC project. [Note: This could be a red herring.] ...
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How does Dijkstra's Algorithm and A-Star compare?

I was looking at what the guys in the Mario AI Competition have been doing and some of them have built some pretty neat Mario bots utilizing the A* (A-Star) Pathing Algorithm. ...
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How to “hibernate” a process in Linux by storing its memory to disk and restoring it later?

Is it possible to 'hibernate' a process in linux? Just like 'hibernate' in laptop, I would to write all the memory used by a process to disk, free up the RAM. And then later on, I can 'resume the process', i.e, reading all the data from memory and put it back to RAM and I can continue with my proces...
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jQuery Determine if a matched class has a given id

What is jQuery has id equivalent of the following statement? 8 Answers 8 ...
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Cleaner way to do a null check in C#? [duplicate]

Suppose, I have this interface, 19 Answers 19 ...