Question

我跑：

pyenv activate new_app

我得到了：

Failed to activate virtualenv.

Perhaps pyenv-virtualenv has not been loaded into your shell properly.
Please restart current shell and try again.

我正在尝试按照本教程：https://tutorials.technology/tutorials/59-Start-a-flask-project-from-zero-building-api-rest.html

其他信息：

bash-3.2$ python --version
Python 3.6.0

bash-3.2$ pyenv version
3.6.0 (set by /Users/me/Projects/flask_api/.python-version)

bash-3.2$ pwd
/Users/me/Projects/flask_api

bash-3.2$ pyenv versions
  system
  3.5.1
  3.5.1/envs/my_env_3_5_1
* 3.6.0 (set by /Users/me/Projects/flask_api/.python-version)
  3.6.0/envs/new_app
  flask_app
  my_env_3_5_1
  new_app

bash-3.2$ virtualenv --version
15.1.0

bash-3.2$ pyenv virtualenvs
3.5.1/envs/my_env_3_5_1 (created from /Users/me/.pyenv/versions/3.5.1)
  3.6.0/envs/new_app (created from /Users/me/.pyenv/versions/3.6.0)
  flask_app (created from /System/Library/Frameworks/Python.framework/Versions/2.7)
  my_env_3_5_1 (created from /Users/me/.pyenv/versions/3.5.1)
  new_app (created from /Users/me/.pyenv/versions/3.6.0)

我最近将.bash_profile包含在内：

bash-3.2$ cat ~/.bash_profile 
eval "$(pyenv init -)"
eval "$(pyenv virtualenv-init -)"
exec "$SHELL"
if which pyenv-virtualenv-init > /dev/null; then eval "$(pyenv virtualenv-init -)"; fi

如何正确启动virtualenv？

Answer 1

这

eval "$(pyenv init -)"
eval "$(pyenv virtualenv-init -)"

应该在.bashrc，而不是.bash_profile。后者仅由 login shell执行，前者由所有交互式shell执行。

Answer 2

将以下几行添加到您的〜/ .bash_profile

for (int i = 0; i < dt_ReportList.Items.Count; i++)
{
   if (!(dt_ReportList.Items[i] is DataRowView dataRowView))
      continue;

   for (int j = 0; j < dt_ReportList.Columns.Count; j++)
   {
      xcelApp[i + 2, j + 1] = dataRowView.Row[j];
   }
}

重新启动shell或运行命令：

eval "$(pyenv init -)"  
eval "$(pyenv virtualenv-init -)"

注意：

如果您使用的是 zsh shell （ macOS Catalina 和/或 Big Sur 的默认设置），则必须使用source ~/.bash_profile文件而不是~/.zprofile

无法使用pyenv激活virtualenv

2 个答案:

注意：