classnumpy.lib.npyio.DataSource(destpath='.')
A generic data source file (file, http, ftp, …).
DataSources can be local files or remote files/URLs. The files may also be compressed or uncompressed. DataSource hides some of the low-level details of downloading the file, allowing you to simply pass in a valid file path (or URL) and obtain a file object.
Parameters:destpathstr, path-like, or None, optionalPath to the directory where the source file gets downloaded to for use. If destpath is None, a temporary directory will be created. The default path is the current directory.
Methods
Notes
URLs require a scheme string (http://) to be used, without it they will fail:
>>> repos=np.lib.npyio.DataSource()>>> repos.exists('www.google.com/index.html')False>>> repos.exists('http://www.google.com/index.html')TrueTemporary directories are deleted when the DataSource is deleted.
Examples
>>> ds=np.lib.npyio.DataSource('/home/guido')>>> urlname='http://www.google.com/'>>> gfile=ds.open('http://www.google.com/')>>> ds.abspath(urlname)'/home/guido/www.google.com/index.html'>>> ds=np.lib.npyio.DataSource(None)# use with temporary file>>> ds.open('/home/guido/foobar.txt')<open file '/home/guido.foobar.txt', mode 'r' at 0x91d4430>>>> ds.abspath('/home/guido/foobar.txt')'/tmp/.../home/guido/foobar.txt'