在Python 3.6.0上下载pyPDF2时如何解决错误？

Question

I am trying to install the pyPDF2 package on Python 3.6.0 . When I open the Command Prompt and type python -m pip install pyPDF2 I receive the following error:

Successfully built pyPDF2 Installing collected packages: pyPDF2

ERROR: Could not install packages due to an EnvironmentError: [WinError 5] Access is denied: 'C:\\Program Files\\Python36\\Lib\\site-packages\\PyPDF2' Consider using the --user option or check the permissions.

Previously, I experienced a similar issue with installing the pip library. I had to receive administrative rights from another user before successfully downloading pip .

I am using Windows 10 OS.

Answer 1

There are a number of options:

1. Install packages in your user directory using pip --user ( answer of PoorProgrammer)

   This is also the solution provided in the error message itself, and should always work.

2. Run the python/pip as administrator ( answer of Sıddık Açıl)

   This is only useful if you have administrative rights.

3. Install Python in a non-protected directory (eg C:\\Python\\3.6 ) instead of in C:\\Program Files .

   This should work as long as you're allowed to install software on the computer. Once installed, you can install additional packages without administrative rights.

4. Install packages in a virtual environment.

   This also works without administrative rights, but you need to install virtualenv once first (eg using python -m pip install --users virtualenv ).

To create a virtual environment for Python 3.6 and install the package in it:

py -3.6 -m virtualenv --python=3.6 my_virtual_environent
my_virtual_environent\Scripts\activate
python -m pip install pyPDF2

Answer 2

以管理员身份打开cmd以获得更高的访问权限，然后再次运行Python pip安装脚本。

Answer 3

You can install it locally on your user as well. I assume that you don't want to have to go and get your cmd elevated every time so the following should work:

python -m pip install --user pyPDF2

If you want to see the location, it should be at %APPDATA%\\Python since you are using windows.