Create a function to fetch a single file about pooch HOT 4 CLOSED

A function like this could help to tackle #130 through a simple gallery example.

For example, supose we have the urls of a large number of files that we want to automatically download just to compute their hashes and then build a registry file for future usage through Pooch.
So, we could create the registry file using the proposed functions like this:

import pooch

urls = [...]  # list containing the urls
filenames = [...]  # list containing the filenames used to save the downloaded files

with open("registry.txt", "w") as registry:
    for fname, url in zip(filenames, urls):
        file_path = pooch.retrieve(url, fname=fname)
        hash = pooch.file_hash(file_path)
        registry.write(f"{name} {hash} {url}\n")

Maybe we could add an optional argument to pooch.retrieve to avoid printing the hash.

from pooch.

Maybe we could add an optional argument to pooch.retrieve to avoid printing the hash.

No need: https://www.fatiando.org/pooch/latest/usage.html#adjusting-the-logging-level

from pooch.

You're right! We should add the lines for reducing the verbose on the example I proposed.

from pooch.

After #149 we'll also need to refactor out the Pooch.fetch code that does the temp file creation, sanity checks, cleanup, hash algorithm determination, etc.

from pooch.