FileNotFoundError:打包PyPI时出现[Errno 2]

问题描述

我在 https://test.pypi.org 中上传了一个简单的python包.当我用pip下载并尝试运行时，我得到FileNotFoundError: [Errno 2] File b'data/spam_collection.csv' does not exist: b'data/spam_collection.csv'.之前我在打包时上传csv文件时遇到问题.在无法将csv文件上传到test.pypi中看到我的问题. org .现在，使用pip安装软件包后，运行pip show -f bigramspamclassifier.我得到列出的csv文件.因此，我相信文件已经上传.我认为问题出在读取包中python文件中的文件. SpamClassifier.py中的csv文件的路径应该是什么?

I have uploaded a simple python package in https://test.pypi.org. When I download this with pip and try yo run I get FileNotFoundError: [Errno 2] File b'data/spam_collection.csv' does not exist: b'data/spam_collection.csv'. Earlier I had issues with uploading the csv file when packaging. See my question in Could not upload csv file to test.pypi.org. Now after installing the package with pip I run pip show -f bigramspamclassifier. I get the csv file listed. Therefore, I believe the file has been uploaded. I think the issue is with reading the file in my python file in the package. What should be the path to the csv file in SpamClassifier.py?

Version: 0.0.3
Summary: A bigram approach for classifying Spam and Ham messages
Home-page: ######
Author: #####
Author-email: #######
Location: /home/kabilesh/PycharmProjects/TestPypl3/venv/lib/python3.6/site-packages
Requires: nltk, pandas
Required-by:
Files:
  bigramspamclassifier-0.0.3.dist-info/INSTALLER
  bigramspamclassifier-0.0.3.dist-info/LICENSE
  bigramspamclassifier-0.0.3.dist-info/METADATA
  bigramspamclassifier-0.0.3.dist-info/RECORD
  bigramspamclassifier-0.0.3.dist-info/WHEEL
  bigramspamclassifier-0.0.3.dist-info/top_level.txt
  bigramspamclassifier/SpamClassifier.py
  bigramspamclassifier/__init__.py
  bigramspamclassifier/__pycache__/SpamClassifier.cpython-36.pyc
  bigramspamclassifier/__pycache__/__init__.cpython-36.pyc
  bigramspamclassifier/data/spam_collection.csv

    def classify(self):
    fullCorpus = pd.read_csv("data/spam_collection.csv", sep="\t", header=None)
    fullCorpus.columns = ["lable", "body_text"]

推荐答案

您的脚本正在尝试从相对路径加载spam_collection.csv文件.相对路径是相对于调用python的位置加载的，相对于不是的源文件所在的位置.

Your script is attempting to load the spam_collection.csv file from a relative path. Relative paths are loaded relative to where python is being invoked, not where the source file is.

这意味着当您从bigramspamclassifier目录运行模块时，它将起作用.但是，一旦模块被pip安装，文件将不再与您在其上运行代码的位置有关(它将被埋在已安装的库中的某个位置).

This means that when you're running your module from the bigramspamclassifier directory, this will work. However, once your module is pip-installed, file will no longer be relative to where you're running your code from (it will be buried somewhere in your installed libraries).

您可以执行以下操作来相对于源文件进行加载:

You can instead load relative to the source file by doing something like:

import os
this_dir, this_filename = os.path.split(__file__)
DATA_PATH = os.path.join(this_dir, "data", "spam_collection.csv")
fullCorpus = pd.read_csv(DATA_PATH, sep="\t", header=None)

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