执行Heroku数据库迁移时遇ImportError：无法从socket导入fromshare

问题原因 #

你执行Heroku run python manage.py migrate时触发的ImportError: cannot import name 'fromshare' from 'socket'，根源是/app/coreapp/forms.py第一行存在错误导入语句from socket import fromshare：

• Python的socket模块中不存在fromshare这个属性
• 你的表单代码逻辑完全不需要这个导入，属于手误导致的无效代码

解决步骤 #

1. 打开项目中的coreapp/forms.py文件
2. 删除第一行的from socket import fromshare语句
3. 保存文件后，重新执行Heroku run python manage.py migrate命令

正确的forms.py代码示例 #

from django import forms
from django.contrib.auth.models import User
from coreapp.models import Restaurant
from django.db import models

class UserForm(forms.ModelForm):
  email = forms.CharField(max_length=100, required=True)
  password = forms.CharField(widget=forms.PasswordInput())
  
  class Meta:
    model = User
    fields = ("username", "password", "first_name", "last_name", "email")

class RestaurantForm(forms.ModelForm):
  class Meta:
    model = Restaurant
    fields = ("name", "phone", "address", "logo")

内容的提问来源于stack exchange，提问作者mick