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psychopy.tools.filetools

Functions and classes related to file and directory handling

psychopy.tools.filetools.toFile(filename, data)

Save data (of any sort) as a pickle file.

simple wrapper of the cPickle module in core python

psychopy.tools.filetools.fromFile(filename)

Load data from a pickle or JSON file.

psychopy.tools.filetools.mergeFolder(src, dst, pattern=None)

Merge a folder into another.

Existing files in dst folder with the same name will be overwritten. Non-existent files/folders will be created.

psychopy.tools.filetools.openOutputFile(fileName=None, append=False, fileCollisionMethod='rename', encoding='utf-8')

Open an output file (or standard output) for writing.

Parameters:
fileName : None, ‘stdout’, or str
The desired output file name. If None or stdout, return sys.stdout. Any other string will be considered a filename.
append : bool, optional
If True, append data to an existing file; otherwise, overwrite it with new data. Defaults to True, i.e. appending.
fileCollisionMethod : string, optional
How to handle filename collisions. Valid values are ‘rename’, ‘overwrite’, and ‘fail’. This parameter is ignored if append is set to True. Defaults to rename.
encoding : string, optional
The encoding to use when writing the file. This parameter will be ignored if append is False and fileName ends with .psydat or .npy (i.e. if a binary file is to be written). Defaults to 'utf-8'.
Returns:
f : file
A writable file handle.
psychopy.tools.filetools.genDelimiter(fileName)

Return a delimiter based on a filename.

Parameters:
fileName : string
The output file name.
Returns:
delim : string
A delimiter picked based on the supplied filename. This will be , if the filename extension is .csv, and a tabulator character otherwise.