Can this load external Python modules like requests?

[oddmario]

Hello,

Title says it all I guess. Like can I get the PyPI modules to work and use them inside the Python plugins?

Kind regards

[Macuyiko]

Yes, but not in a clean way. Preferably, you'd look for Java library alternatives and drop those JAR files in lib-custom.

Alternatively, you can create a site-packages folder in you spigot directory and unextract whl files in there, e.g. for requests, I have:

14/06/2021  20:21    <DIR>          certifi
14/06/2021  20:21    <DIR>          certifi-2021.5.30.dist-info
14/06/2021  20:21    <DIR>          chardet
14/06/2021  20:21    <DIR>          chardet-4.0.0.dist-info
14/06/2021  20:22    <DIR>          idna
14/06/2021  20:22    <DIR>          idna-2.10.dist-info
14/06/2021  20:22    <DIR>          requests
14/06/2021  20:15    <DIR>          requests-2.25.1.dist-info
14/06/2021  20:20    <DIR>          urllib3
14/06/2021  20:20    <DIR>          urllib3-1.26.5.dist-info

Note that you should make sure to obtain py2.7 compatible packages as Jython is not Python 3 compatible.

In the Minecraft Python console, you can then:

import sys
from os.path import abspath, sep
sys.path.append(abspath('.') + sep + 'site-packages')

import requests
requests.get('https://example.org').text

Not ideal, but preferably I'd wait to find a better approach to this until Jython finally decides to get Python 3 support working or I can find a Java-Python 3 compatible interop package. (I still think Py4J should work but will require some experimenting to figure out, especially with Spigot's threading model.)

[oddmario]

Thank you so much! Using the site-packages method to load the requests module would be easier imo since making a HTTP request using the Java libraries available there is a painful process honestly

[d3xt3r0]

Yes, but not in a clean way. Preferably, you'd look for Java library alternatives and drop those JAR files in lib-custom.

Alternatively, you can create a site-packages folder in you spigot directory and unextract whl files in there, e.g. for requests, I have:

14/06/2021  20:21    <DIR>          certifi
14/06/2021  20:21    <DIR>          certifi-2021.5.30.dist-info
14/06/2021  20:21    <DIR>          chardet
14/06/2021  20:21    <DIR>          chardet-4.0.0.dist-info
14/06/2021  20:22    <DIR>          idna
14/06/2021  20:22    <DIR>          idna-2.10.dist-info
14/06/2021  20:22    <DIR>          requests
14/06/2021  20:15    <DIR>          requests-2.25.1.dist-info
14/06/2021  20:20    <DIR>          urllib3
14/06/2021  20:20    <DIR>          urllib3-1.26.5.dist-info

Note that you should make sure to obtain py2.7 compatible packages as Jython is not Python 3 compatible.

In the Minecraft Python console, you can then:

import sys
from os.path import abspath, sep
sys.path.append(abspath('.') + sep + 'site-packages')

import requests
requests.get('https://example.org').text

Not ideal, but preferably I'd wait to find a better approach to this until Jython finally decides to get Python 3 support working or I can find a Java-Python 3 compatible interop package. (I still think Py4J should work but will require some experimenting to figure out, especially with Spigot's threading model.)

Is it not possible to use Jython3 for python 3 support?

Thanks.

[Matthew-MBG]

Hi there, I have a small issue. The package I'm trying to import doesn't have a whl file. What should I do?

[andriemc]

@Matthew-MBG If it doesn't that means it's a broken package.

[Macuyiko]

Is it not possible to use Jython3 for python 3 support?

Jython 3 is basically dead in the water, sadly, so Py4J would probably be better.

[VincentX0905]

[14:11:33 WARN]: Traceback (most recent call last):
[14:11:33 WARN]:   File "C:\Users\vince\Desktop\MC\python\mcapi.py", line 104, in wrap_exception
[14:11:33 WARN]:     g()
[14:11:33 WARN]:   File "C:\Users\vince\Desktop\MC\python\mcapi.py", line 125, in <lambda>
[14:11:33 WARN]:     g = lambda: f(*args, **kwargs)
[14:11:33 WARN]:   File "C:\Users\vince\Desktop\MC\.\python-plugins\checkver.py", line 36, in disablee
[14:11:33 WARN]:     check()
[14:11:33 WARN]:   File "C:\Users\vince\Desktop\MC\.\python-plugins\checkver.py", line 17, in check
[14:11:33 WARN]:     corever = requests.get("https://api.purpurmc.org/v2/purpur/%s" % needcorever).json()['tls_version']
[14:11:33 WARN]:   File "C:\Users\vince\Desktop\MC\site-packages\requests\api.py", line 76, in get
[14:11:33 WARN]:     return request('get', url, params=params, **kwargs)
[14:11:33 WARN]:   File "C:\Users\vince\Desktop\MC\site-packages\requests\api.py", line 61, in request
[14:11:33 WARN]:     return session.request(method=method, url=url, **kwargs)
[14:11:33 WARN]:   File "C:\Users\vince\Desktop\MC\site-packages\requests\sessions.py", line 542, in request
[14:11:33 WARN]:     resp = self.send(prep, **send_kwargs)
[14:11:33 WARN]:   File "C:\Users\vince\Desktop\MC\site-packages\requests\sessions.py", line 655, in send
[14:11:33 WARN]:     r = adapter.send(request, **kwargs)
[14:11:33 WARN]:   File "C:\Users\vince\Desktop\MC\site-packages\requests\adapters.py", line 514, in send
[14:11:33 WARN]:     raise SSLError(e, request=request)
[14:11:33 WARN]: SSLError: HTTPSConnectionPool(host='api.purpurmc.org', port=443): Max retries exceeded with url: /v2/purpur/1.19.3 (Caused by SSLError(SSLError(1, u'Received fatal alert: handshake_failure'),))

i get this error
i can not get purpur website wuth SSL error

[Macuyiko]

Setting verify=False might help (though this is a quick solution which will ignore SSL).

More info: https://stackoverflow.com/questions/10667960/python-requests-throwing-sslerror

[VincentX0905]

[18:12:22 WARN]: Traceback (most recent call last):
[18:12:22 WARN]:   File "C:\Users\vince\Desktop\MC\python\mcapi.py", line 104, in wrap_exception
[18:12:22 WARN]:     g()
[18:12:22 WARN]:   File "C:\Users\vince\Desktop\MC\python\mcapi.py", line 125, in <lambda>
[18:12:22 WARN]:     g = lambda: f(*args, **kwargs)
[18:12:22 WARN]:   File "C:\Users\vince\Desktop\MC\.\python-plugins\checkver.py", line 35, in disablee
[18:12:22 WARN]:     check()
[18:12:22 WARN]:   File "C:\Users\vince\Desktop\MC\.\python-plugins\checkver.py", line 17, in check
[18:12:22 WARN]:     corever = requests.get("https://api.purpurmc.org/v2/purpur/%s" % needcorever, verify=False).json()
[18:12:22 WARN]:   File "C:\Users\vince\Desktop\MC\site-packages\requests\api.py", line 76, in get
[18:12:22 WARN]:     return request('get', url, params=params, **kwargs)
[18:12:22 WARN]:   File "C:\Users\vince\Desktop\MC\site-packages\requests\api.py", line 61, in request
[18:12:22 WARN]:     return session.request(method=method, url=url, **kwargs)
[18:12:22 WARN]:   File "C:\Users\vince\Desktop\MC\site-packages\requests\sessions.py", line 542, in request
[18:12:22 WARN]:     resp = self.send(prep, **send_kwargs)
[18:12:22 WARN]:   File "C:\Users\vince\Desktop\MC\site-packages\requests\sessions.py", line 655, in send
[18:12:22 WARN]:     r = adapter.send(request, **kwargs)
[18:12:22 WARN]:   File "C:\Users\vince\Desktop\MC\site-packages\requests\adapters.py", line 514, in send
[18:12:22 WARN]:     raise SSLError(e, request=request)
[18:12:22 WARN]: SSLError: HTTPSConnectionPool(host='api.purpurmc.org', port=443): Max retries exceeded with url: /v2/purpur/1.19.3 (Caused by SSLError(SSLError(1, u'Received fatal alert: handshake_failure'),))

i add it
same
i google this issus like java issue

[Macuyiko]

Yes, seems to be a weird interplay between requests, Jython, and OpenSSL on Java. Most likely due because api.purpurmc.org only supports recent TLS.

Perhaps using httplib in this instance is easier (this worked for me):

import httplib
conn = httplib.HTTPSConnection('api.purpurmc.org')
conn.request('GET', '/v2/purpur/1.19.3')
r = conn.getresponse()
print r.status, r.reason
data = r.read()
print data

[VincentX0905]

thanks
it working
and can you open a discord guild?
This way you don’t have to open an issue for small things
It also allows a broad user base to participate