适用于所有用户的Pip3安装模块

问题描述 投票:1回答:1

不确定我是否应该在Linux堆栈溢出时问这个问题,但是现在就这样了。

我是python的新手,我一直在努力让这个python脚本在aws机器上自动启动。我有两个需要安装的模块“discord.py”和“watson-cloud-developer”。 Pip3安装上述模块,没有错误。当试图运行运行运行python脚本的脚本的服务时(得知系统)我收到错误,告诉我没有安装discord模块,见下文。

Systemctl error

    ● discordbot.service
   Loaded: loaded (/etc/systemd/system/discordbot.service; static; vendor preset: enabled)
   Active: failed (Result: exit-code) since Sun 2019-03-03 17:16:00 UTC; 6s ago
  Process: 30567 ExecStart=/usr/local/sbin/startbot.sh (code=exited, status=1/FAILURE)
 Main PID: 30567 (code=exited, status=1/FAILURE)

Mar 03 17:16:00 ip-172-31-46-72 systemd[1]: Started discordbot.service.
Mar 03 17:16:00 ip-172-31-46-72 startbot.sh[30567]: Traceback (most recent call last):
Mar 03 17:16:00 ip-172-31-46-72 startbot.sh[30567]:   File "/home/ubuntu/discordBot/main.py", line 1, in <module>
Mar 03 17:16:00 ip-172-31-46-72 startbot.sh[30567]:     import discord
Mar 03 17:16:00 ip-172-31-46-72 startbot.sh[30567]: ModuleNotFoundError: No module named 'discord'
Mar 03 17:16:00 ip-172-31-46-72 systemd[1]: discordbot.service: Main process exited, code=exited, status=1/FAILURE
Mar 03 17:16:00 ip-172-31-46-72 systemd[1]: discordbot.service: Failed with result 'exit-code'.

Python3 proof that discord is installed

Python 3.6.7 (default, Oct 22 2018, 11:32:17)
[GCC 8.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import discord
>>>

我非常乐意提供任何其他信息。

EDITS:

服务:

[Service]
ExecStart=/usr/local/sbin/startbot.sh

bash脚本:

#!/bin/bash
python3 /home/ubuntu/discordBot/main.py

python脚本:

import json
from watson_developer_cloud import VisualRecognitionV3

visual_recognition = VisualRecognitionV3(
            "2018-03-19",
            iam_apikey="{api-key}")

def ReturnWatsonResults(urlInput):
    classes_result = visual_recognition.classify(url=urlInput).get_result()
    imageResults = dict()

    for images in classes_result['images'][0]['classifiers'][0]['classes']:
        imageResults[images['class']]=str(images['score'] * 100)

    return imageResults

import discord
import watson
from discord.ext.commands import Bot

TOKEN = '{api-key}'

BOT_PREFIX = ("!", "$")

client = Bot(command_prefix=BOT_PREFIX)

@client.command(name="Memealyze",
        description="Send your favorite meme and the boys at IBM will get to work telling you what they see",
        brief="Neural network put to good use",
        pass_context=True)
async def GetMemeContents(context):
    await client.say("Sending image to the mothership, hold tight")

    messageContent = ""
    imageUrl = str(context.message.attachments[0]['url'])
    resultDict = watson.ReturnWatsonResults(imageUrl)

    for key,val in resultDict.items():
        messageContent += (key + ":" + val + "%" + "\n")

    await client.say("Done, the boys at IBM said they found this:\n" + messageContent)

client.run(TOKEN)

我知道python脚本编写得不是很好,但是它们确实有效,目前网络中的问题完全在于pip正在安装模块的地方,由于某种原因它们在被systemd运行时无法访问。

python-3.x pip systemd systemctl
1个回答
1
投票

我怀疑你的启动脚本正在启动一个不同于你已安装discord的Python。

尝试添加该行,

import sys; print(sys.executable, sys.prefix)

main.py之前到你的import discord。并尝试在你的python3 shell中运行它。这应该分别打印安装Python可执行文件和标准库的位置。如果它们在main.py中与在shell中不同,那就是你的问题。

也试试

$ which python3
$ which pip3

一旦你知道实际运行的Python可执行文件的路径,就可以使用Python的pip

$ foo -m pip install discord

其中foo是您在sys.executable中使用main.py打印的Python可执行文件的完整路径。


您还可以尝试将discord安装到虚拟环境中。

$ python3 -m venv foo
$ source foo/bin/activate
$ pip install discord  # install all your other requirements too

其中foo是一些可以安装虚拟环境的路径。然后在启动脚本中,在运行main.py之前激活源激活。这可以确保python将在您刚刚创建的foo环境中运行。

#!/bin/bash
source foo/bin/activate
python /home/ubuntu/discordBot/main.py

请注意,在活动虚拟环境中,即使使用python创建环境,也可以使用pippython3

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