Python download file

programming review

Table of contents:

To download a file in Python you can do many things. Here are some options:

Using wget to download file

You will need to install wget first: pip install wget since wget is not in standard library.

Example:

import wget
url = 'https://files.pythonhosted.org/packages/68/75/d1d7b7340b9eb6e0388bf95729e63c410b381eb71fe8875cdfd949d8f9ce/setuptools-45.2.0.zip'
# wget.download(url) in case we just like to use the default file name
wget.download(url, out='file.zip') # will use file.zip as output file name

Where wget.download signature is:

def download(url, out=None, bar=bar_adaptive):
    """High level function, which downloads URL into tmp file in current
    directory and then renames it to filename autodetected from either URL
    or HTTP headers.

    :param bar: function to track download progress (visualize etc.)
    :param out: output filename or directory
    :return:    filename where URL is downloaded to
    """

Using requests to download file

Example:

import requests
url = 'https://files.pythonhosted.org/packages/68/75/d1d7b7340b9eb6e0388bf95729e63c410b381eb71fe8875cdfd949d8f9ce/setuptools-45.2.0.zip'
response = requests.get(url, allow_redirects=True) # nostream
with open('file.zip', 'wb') as handle:
    handle.write(response.content)

Download file with python progress bar

Example:

from tqdm import tqdm
import requests
url = 'https://files.pythonhosted.org/packages/68/75/d1d7b7340b9eb6e0388bf95729e63c410b381eb71fe8875cdfd949d8f9ce/setuptools-45.2.0.zip'
response = requests.get(url, stream=True)

with open('file.zip', 'wb') as handle:
    for data in tqdm(response.iter_content()):
        handle.write(data)

Here is requests.get signature:

def get(url, params=None, **kwargs):
    r"""Sends a GET request.

    :param url: URL for the new :class:`Request` object.
    :param params: (optional) Dictionary, list of tuples or bytes to send
        in the body of the :class:`Request`.
    :param \*\*kwargs: Optional arguments that ``request`` takes.
    :return: :class:`Response <Response>` object
    :rtype: requests.Response
    """

Unzip a file after download

Here is how to unzip file after download (in case of zip file):

Example:

import zipfile
with zipfile.ZipFile('file.zip', 'r') as h:
    h.extractall('folder')

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