D:\Anaconda3\envs\tensorflow19python36\Scripts\pip-script.py' is not present.

It seems that you are encountering an error regarding the absence of the 'pip-script.py' file in the specified directory. This error typically occurs when the 'pip' package is not installed or there is an issue with the installation.

To resolve this issue, you can try the following steps:

1. Ensure that you have Python and pip installed on your system. You can check this by running the following commands in your command prompt or terminal:

   python --version
   pip --version

2. If Python and pip are installed, but you still encounter the error, you can try upgrading pip to the latest version using the following command:

   python -m pip install --upgrade pip

3. If the above steps don't work, you can try reinstalling pip using the get-pip.py script. First, download the get-pip.py script from the official Python website (https://bootstrap.pypa.io/get-pip.py). Then, navigate to the directory where you downloaded the script and run the following command:

   python get-pip.py

These steps should help you resolve the issue with the missing 'pip-script.py' file. Let me know if you have any further questions!