May 28, 2011 · 1387 How do I write a line to a file in modern Python? I heard that this is deprecated: print >>f, "hi there" Also, does "\n" work on all platforms, or should I use "\r\n" on …

May 27, 2010 · I want to append a newline to my string every time I call file.write(). What's the easiest way to do this in Python?

With Python 2 on Windows, I found that writing a bytearray still converts \n to \r\n, making it unsatisfactory for binary data, if the "b" flag is not passed when opening the file.

When you say "replace the old content that's in the file with the new content", you need to read in and transform the current contents data = file.read(). You don't mean "blindly overwrite it …

Jan 16, 2011 · On some operating systems, opening the file with 'a' guarantees that all your following writes will be appended atomically to the end of the file (even as the file grows by …

Is there a way to save all of the print output to a txt file in python? Lets say I have the these two lines in my code and I want to save the print output to a file named output.txt.

How do I write JSON data stored in the dictionary data to a file? f = open ('data.json', 'wb') f.write (data) This gives the error: TypeError: must be string or buffer, not dict

Jun 17, 2011 · How can I use the logging module in Python to write to a file? Every time I try to use it, it just prints out the message.

I have looked through the information that the Python documentation for pickle gives, but I'm still a little confused. What would be some sample code that would write a new file and then use …

Sep 18, 2012 · How can I write data in YAML format in a file? Asked 13 years, 1 month ago Modified 6 months ago Viewed 405k times