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问题：使用 python 3 和 brownie 时无法导入 PIL 模块

当我运行“brownie run scripts/create_metadata.py --network rinkeby”时，出现以下错误：ModuleNotFoundError：没有名为“PIL”的模块。

简单的解决方案是点安装枕头。问题是我确实安装了它。当我在我的 cmd 中运行 'pip list' 时，会出现 Pillow。该错误仅在使用 brownie 时发生，我可以在 python 中定期运行脚本时使用 PIL 模块。但是当我使用'brownie run...'运行脚本时，我确实得到了错误。下面是完整的输出和代码。

任何提示将非常感谢。

这是 scripts/create_metadata.py 的代码：

from brownie import StreamCollectible, network
from metadata.sample_metadata import metadata_template
from pathlib import Path
import requests
import json
import os
import math
import PIL

# from PIL import Image, ImageFont, ImageDraw

PINATA_BASE_URL = "https://api.pinata.cloud/"
endpoint = "pinning/pinFileToIPFS"
headers = {
    "pinata_api_key": str(os.getenv("PINATA_API_KEY")),
    "pinata_secret_api_key": str(os.getenv("PINATA_API_SECRET")),
}


def main():
    stream_collectible = StreamCollectible[-1]
    number_of_collectibles = stream_collectible.tokenCounter()
    print(f"There are {number_of_collectibles} stream collectibles")
    for token_id in range(number_of_collectibles):
        metadata_file_name = f"./metadata/{network.show_active()}/{token_id}"
        metadata = metadata_template
        if Path(metadata_file_name).exists():
            print(f"{metadata_file_name} already exists! Delete it to overwrite it")
        else:
            print(f"Creating Metadata file: {metadata_file_name}")
            metadata["name"] = f"Stream Token #{token_id}"
            metadata["description"] = ""

            img_path = f"./images/{token_id}.jpg"
            create_img(token_id)

            img_uri = None
            if os.getenv("UPLOAD_IPFS") == "true":
                img_uri = upload_pinata_IPFS(token_id)

            metadata["image"] = img_uri
            with open(metadata_file_name, "w") as file:
                json.dump(metadata, file)


def upload_pinata_IPFS(file_name):
    file_path = f"./images/{file_name}.jpg"
    with Path(file_path).open("rb") as fp:

        image_binary = fp.read()

        response = requests.post(
            str(PINATA_BASE_URL + endpoint),
            files={"file": (str(file_name), str(image_binary))},
            headers=headers,
        )
        JSON_response = response.json()

        URI = f"https://ipfs.io/ipfs/{JSON_response['IpfsHash']}?filename={file_name}.json"

        print("JSON RESPONSE")
        print(JSON_response)
        print("")
        print("URI")
        print(URI)
        return URI


def create_img(n):
    width = 17
    nList = list(str(n))
    bImage = Image.new("L", (width, width), 255)

    for i in range(len(nList)):
        xAxis = (7 - 2 * (len(nList) - 1)) + 4 * i
        nImage = Image.open(f"template/{nList[i]}.png")
        bImage.paste(nImage, (xAxis, 6))

    if not os.path.exists("./images"):
        os.makedirs("./images")
    bImage.save(f"./images/{n}.png")
    n -= 1

这是完整的输出：

INFO: Could not find files for the given pattern(s).
Brownie v1.17.2 - Python development framework for Ethereum

Erc721StreamtokenProject is the active project.
  File "C:\Users\user\.local\pipx\venvs\eth-brownie\lib\site-packages\brownie\_cli\run.py", line 50, in main
    return_value, frame = run(
  File "C:\Users\user\.local\pipx\venvs\eth-brownie\lib\site-packages\brownie\project\scripts.py", line 53, in run       
    module = _import_from_path(script)
  File "C:\Users\user\.local\pipx\venvs\eth-brownie\lib\site-packages\brownie\project\scripts.py", line 149, in _import_from_path
    _import_cache[import_str] = importlib.import_module(import_str)
  File "C:\Program, line line, in in
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File "<frozen, line line, in in
  File ".\scripts\create_metadata.py", line 8, in <module>
    import PIL
ModuleNotFoundError: No module named 'PIL'
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1 回答 1

1

使用brownieinstalled viapipx时，实际上是在它自己的虚拟环境中安装 brownie。当您运行 brownie 时，它​​不会查看您本地安装的软件包。您必须将inject您的模块放入 brownie 虚拟环境中，如下所示：

pipx inject eth-brownie Pillow

或者无论你的模块是什么

于 2021-12-13T19:50:55.777 回答