CODEWITHSUNDEEP
pythonwget
Valer Ghazaryan
Valer Ghazaryan

Reputation: 35

downloading and installing a program using python

I need to download and install Java JDK on various systems using python code. I used the Wget module however, I don't know the directory of the downloaded file, hence there is no result

import platform
import requests
import wget

url_windows='https://download.oracle.com/otn-pub/java/jdk/13.0.1+9/cec27d702aa74d5a8630c65ae61e4305/jdk-13.0.1_windows-x64_bin.exe'
url_mac='https://download.oracle.com/otn-pub/java/jdk/13.0.1+9/cec27d702aa74d5a8630c65ae61e4305/jdk-13.0.1_osx-x64_bin.dmg'
url_linux='https://download.oracle.com/otn-pub/java/jdk/13.0.1+9/cec27d702aa74d5a8630c65ae61e4305/jdk-13.0.1_linux-x64_bin.deb'

if platform.system == 'Windows':
    wget.download(url_windows)
if platform.system == 'Linux':
    wget.download(url_linux)
if platform.system == 'Mac':
    wget.download(url_mac)

what can I do?

Upvotes: 1

Views: 211

Answers (2)

CrazyElf
CrazyElf

Reputation: 765

platform.system is a function, you should call it to compare it's return value with string, so use platform.system() instead. For now you are not using wget anywhere in your code actually because all comparations failed.

Upvotes: 2

Gino Mempin
Gino Mempin

Reputation: 29670

By default, it is downloaded in the current directory where you run it.

See help(wget.download):

Help on function download in module wget:

download(url, out=None, bar=<function bar_adaptive at 0x100ddcdd0>)
    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

It returns the filename of the downloaded file, so you can use os.path.abspath to get the full path:

>>> import os
>>> import wget
>>> f = wget.download("https://download.oracle.com/otn-pub/java/jdk/13.0.1+9/cec27d702aa74d5a8630c65ae61e4305/jdk-13.0.1_osx-x64_bin.dmg")
100% [................................................................................] 5307 / 5307>>> 
>>> f
'jdk-13.0.1_osx-x64_bin.dmg'
>>> os.path.abspath(f)
'/Users/gino/jdk-13.0.1_osx-x64_bin.dmg'
>>>

The function also accepts an out parameter so that you can explicitly set the download path.

As a side note, as mentioned by @CrazyElf's answer, you should be using platform.system() to get the string names of the OS ("Windows", "Darwin", etc.) and not platform.system which is a function:

>>> import platform
>>> platform.system
<function system at 0x100f19170>
>>> platform.system()
'Darwin'

(Notice that it returns "Darwin" on a Mac and not "Mac".)

Upvotes: 2

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