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  2. Python write line by line to a text file. 13. Write text to file line by line. 9. Start python script with ...

  3. file - Python writing binary - Stack Overflow

    stackoverflow.com/questions/20955543

    When you open a file in binary mode, then you are essentially working with the bytes type. So when you write to the file, you need to pass a bytes object, and when you read from it, you get a bytes object. In contrast, when opening the file in text mode, you are working with str objects. So, writing “binary” is really writing a bytes string:

  4. Unless write to binary files, use print. Below example good for formatting csv files: def write_row(file_, *columns): print(*columns, sep='\t', end='\n', file=file_)

  5. open('filename', 'wb').write(bytes_) As you would expect from the 'b', this is a byte API. from io import BytesIO. BytesIO().write(bytes_) BytesIO is the byte equivalent to StringIO. EDIT: write will Just Work on any binary file-like object. So the general solution is just to find the right API.

  6. pickle: A Python serialization format (read & write) MessagePack (Python package): More compact representation (read & write) HDF5 (Python package): Nice for matrices (read & write) XML: exists too *sigh* (read & write) For your application, the following might be important: Support by other programming languages; Reading / writing performance

  7. Write to UTF-8 file in Python - Stack Overflow

    stackoverflow.com/questions/934160

    import codecs file = codecs.open("lol", "w", "utf-8") file.write(u'\ufeff') file.close() (That seems to give the right answer - a file with bytes EF BB BF.) EDIT: S. Lott's suggestion of using "utf-8-sig" as the encoding is a better one than explicitly writing the BOM yourself, but I'll leave this answer here as it explains what was going wrong ...

  8. beginning of the file. ``w'' Truncate file to zero length or create text file for writing. The stream is positioned at the beginning of the file. ``w+'' Open for reading and writing. The file is created if it does not. exist, otherwise it is truncated. The stream is positioned at. the beginning of the file.

  9. python - How do I append to a file? - Stack Overflow

    stackoverflow.com/questions/4706499

    Python has many variations off of the main three modes, these three modes are: 'w' write text 'r' read text 'a' append text. So to append to a file it's as easy as: f = open ('filename.txt', 'a') f.write ('whatever you want to write here (in append mode) here.')

  10. At the time this question was asked in 2012, the default flow style was None but since PyYaml 5.1, it's been False, so for recent versions of PyYaml (e.g. PyYaml 6.0.1), the nested objects are written in block style by default, i.e. the following code:

  11. writing a list to a txt file in python - Stack Overflow

    stackoverflow.com/questions/20334893

    Python - write txt file with a list. 0. writing lists to text file in python3. 0. Writing to a text file ...