Python Django建立DigitalOchean Postgre”项目；数据库={quot；ERORR

我按照指南在带有Postgres数据库的数字海洋服务器上建立aDjango网站

教师遵循的指南是官方数字海洋设置指南

在我尝试迁移服务器端的项目之前，一切都很好：

• 我在终端中运行的第一个语法

  python manage.py makemigrations
  

  python3 manage.py makemigrations
  

• 第一错误

   File "manage.py", line 16
   ) from exc
        ^
   SyntaxError: invalid syntax
  

• 我在终端中运行的第二个语法

  python manage.py makemigrations
  

  python3 manage.py makemigrations
  

• 第二个错误

    Traceback (most recent call last):
    File "manage.py", line 21, in <module>
      main()
    File "manage.py", line 17, in main
      execute_from_command_line(sys.argv)
    File "/home/djangodeploy/.local/lib/python3.6/site-packages/django/core/management/__init__.py", line 371, in execute_from_command_line
      utility.execute()
    File "/home/djangodeploy/.local/lib/python3.6/site-packages/django/core/management/__init__.py", line 317, in execute
      settings.INSTALLED_APPS
    File "/home/djangodeploy/.local/lib/python3.6/site-packages/django/conf/__init__.py", line 56, in __getattr__
      self._setup(name)
    File "/home/djangodeploy/.local/lib/python3.6/site-packages/django/conf/__init__.py", line 43, in _setup
      self._wrapped = Settings(settings_module)
    File "/home/djangodeploy/.local/lib/python3.6/site-packages/django/conf/__init__.py", line 106, in __init__
      mod = importlib.import_module(self.SETTINGS_MODULE)
    File "/usr/lib/python3.6/importlib/__init__.py", line 126, in import_module
      return _bootstrap._gcd_import(name[level:], package, level)
    File "<frozen importlib._bootstrap>", line 994, in _gcd_import
    File "<frozen importlib._bootstrap>", line 971, in _find_and_load
    File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
    File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
    File "<frozen importlib._bootstrap_external>", line 678, in exec_module
    File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
    File "/home/djangodeploy/portfolio-project/portfolio/settings.py", line 137, in <module>
      from .local_settings import *
    File "/home/djangodeploy/portfolio-project/portfolio/local_settings.py", line 5
      DATABASES = {
      ^
  IndentationError: unexpected indent
  

  • 我还尝试了导入设置更正（更改了用于发布的数据库数据的值）
  我仍然得到原始错误
  我的manage.py文件我已尝试使用这两个选项

  
  
  """
  # this commented out what the teacher has in his code
  import os
  import sys
  
  if __name__ == "__main__":
      os.environ.setdefault("DJANGO_SETTINGS_MODULE", "portfolio.settings")
      try:
          from django.core.management import execute_from_command_line
      except ImportError as exc:
          raise ImportError(
              "Couldn't import Django. Are you sure it's installed and "
              "available on your PYTHONPATH environment variable? Did you "
              "forget to activate a virtual environment?"
          ) from exc
      execute_from_command_line(sys.argv)
  """
  
  
  
  
  # This is what I had
  import os
  import sys
  
  
  def main():
      os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'portfolio.settings')
      try:
          from django.core.management import execute_from_command_line
      except ImportError as exc:
          raise ImportError(
              "Couldn't import Django. Are you sure it's installed and "
              "available on your PYTHONPATH environment variable? Did you "
              "forget to activate a virtual environment?"
          ) from exc
      execute_from_command_line(sys.argv)
  
  
  if __name__ == '__main__':
      main()
  
  

  根据普拉尼塔·甘地的评论更新1
  • 我已卸载服务器VENV中的所有4个库

  • 在本地机器上，我创建了原始venv as的requirements.txt 普拉尼塔·甘地（Pranita Gandhi）推荐了它。然后将它放到服务器上，并尝试将它安装到现在已空的服务器venv上

  pip3安装-r requirements.txt

  • 我得到了以下结果：
  更新2
  我已尝试基于强制安装 /moham96于2018年4月20日发表评论
  您正在尝试将程序包安装到您没有写入权限的系统文件夹中。 您有三个选项（仅使用其中一个）：
  • 1-设置虚拟环境以安装软件包（推荐）：
  • 2-将软件包安装到用户文件夹：
  • 3-使用sudo安装到系统文件夹（不推荐）

  ---

  不幸的是，没有一个解决了我的问题。
  您好，在课程中出现提示时，您是否安装并激活了虚拟环境。我认为很可能是虚拟环境

  ---

  你能在服务器终端中找到你的venv或env文件夹吗？
  你能发布你的manage.py文件吗？是的，我确实安装了venv，并且运行良好。我还成功地从本地项目安装了需求文件“Django==2.0.7 Pizz==5.0.0 psycopg2==2.7.4 psycopg2 binary==2.7.4 pytz==2018.3”但我不确定它们是否是唯一需要的，因为我不小心在我的计算机原始venv上安装了一些人员。您可以通过执行另一个pip freeze>requirements.txt并重新推拉来更新您的requirements.txt。=然后再次尝试迁移。

  
  Collecting Django==2.0.7
    Using cached https://files.pythonhosted.org/packages/ab/15/cfde97943f0db45e4f999c60b696fbb4df59e82bbccc686770f4e44c9094/Django-2.0.7-py3-none-any.whl
  Collecting Pillow==5.0.0
    Using cached https://files.pythonhosted.org/packages/9a/2f/86941111d108fd060190c994f15881283b98693c1c370e74885cfc470eb3/Pillow-5.0.0-cp36-cp36m-manylinux1_x86_64.whl
  Collecting psycopg2==2.7.4
    Using cached https://files.pythonhosted.org/packages/92/15/92b5c363243376ce9cb879bbec561bba196694eb663a6937b4cb967e230e/psycopg2-2.7.4-cp36-cp36m-manylinux1_x86_64.whl
  Collecting psycopg2-binary==2.7.4
    Using cached https://files.pythonhosted.org/packages/5f/0b/aa7078d3f6d27d951c38b6a1f4b99b71b2caecebb2921b2d808b5bf0e2e0/psycopg2_binary-2.7.4-cp36-cp36m-manylinux1_x86_64.whl
  Collecting pytz==2018.3
    Using cached https://files.pythonhosted.org/packages/3c/80/32e98784a8647880dedf1f6bf8e2c91b195fe18fdecc6767dcf5104598d6/pytz-2018.3-py2.py3-none-any.whl
  Installing collected packages: pytz, Django, Pillow, psycopg2, psycopg2-binary
  ERROR: Could not install packages due to an EnvironmentError: [Errno 13] Permission denied: '/usr/lib/python3.6/site-packages'
  Consider using the `--user` option or check the permissions.
  

  python3 -m venv env
  source ./env/bin/activate 
  python -m pip install requirements.txt
  

  python -m pip install --user requirements.txt
  

  sudo python -m pip install requirements.txt