How to download previous version of tensorflow?

To download early versions of TensorFlow, you can use the Python package manager pip. The specific steps are as follows:

1. Open the Command Prompt or Terminal: First, ensure that your system has Python and pip installed. Open your command-line tool, such as CMD on Windows or Terminal on macOS/Linux.

2. Check Available Versions: Before installing a specific version, you may want to check the available early versions of TensorFlow. You can use the following pip commands to find them:

shell
pip install yolk3k
yolk -V tensorflow

This will list all available TensorFlow versions.

1. Select and Install the Version: Once you have determined the version to install, you can use pip to install it directly. For example, if you want to install version 1.15, use the following command:

shell
pip install tensorflow==1.15

If you are using a Python virtual environment (strongly recommended, especially for multi-project development), you need to activate your environment first before running the above installation commands.

Additionally, some older versions of TensorFlow may only be compatible with specific Python versions. For example, TensorFlow 1.x versions typically require Python 3.5 to 3.7. If you encounter compatibility issues during installation, you may need to install or use an appropriate version of Python.

Real-world Example: In a previous project, we needed to reproduce a study developed using TensorFlow 1.4. Due to incompatibility with many APIs between newer TensorFlow versions (2.x) and 1.x, we had to install the older version. Following the above steps, we successfully installed TensorFlow 1.4 and reproduced the research results, ensuring accuracy and comparability.