check_download_file

sunpy.util.net.check_download_file(filename, remotepath, download_dir, remotename=None, replace=False)

Downloads a file from a remotepath to a localpath if it isn’t there.

This function checks whether a file with name filename exists in the user’s local machine. If it doesn’t, it downloads the file from remotepath.

Parameters

• filename (str) – Name of file.

• remotepath (str) – URL of the remote location from which filename can be downloaded.

• download_dir (str) – The files directory.

• remotename (str, optional) – Filename under which the file is stored remotely. Default is same as filename.

• replace (bool, optional) – If True, file will be downloaded whether or not file already exists locally.

Examples

>>> from sunpy.util.net import check_download_file
>>> remotepath = "https://www.download_repository.com/downloads/"
>>> check_download_file("filename.txt", remotepath, download_dir='.')