Update README; mention upgrading pip on failure

Prompted by #231

[skip ci]
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rdb 2018-01-17 10:45:36 +01:00
parent fe3dab192f
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@ -28,6 +28,8 @@ into an existing Python installation is using the following command:
pip install --pre --extra-index-url https://archive.panda3d.org/ panda3d pip install --pre --extra-index-url https://archive.panda3d.org/ panda3d
``` ```
If this command fails, please make sure your version of pip is up-to-date.
If you prefer to install the full SDK with all tools, the latest development If you prefer to install the full SDK with all tools, the latest development
builds can be obtained from this page: builds can be obtained from this page:
@ -51,6 +53,9 @@ depending on whether you are on a 32-bit or 64-bit system:
https://www.panda3d.org/download/panda3d-1.9.4/panda3d-1.9.4-tools-win32.zip https://www.panda3d.org/download/panda3d-1.9.4/panda3d-1.9.4-tools-win32.zip
https://www.panda3d.org/download/panda3d-1.9.4/panda3d-1.9.4-tools-win64.zip https://www.panda3d.org/download/panda3d-1.9.4/panda3d-1.9.4-tools-win64.zip
(It is also possible to build using MSVC 2015 and 2017, which requires a
different set of thirdparty libraries, but that is not described here.)
After acquiring these dependencies, you may simply build Panda3D from the After acquiring these dependencies, you may simply build Panda3D from the
command prompt using the following command: command prompt using the following command: