The changes

You should use pip:

pip install pywin32 --upgrade

More details in the README

.exe installers are now deprecated, but while they still exist, you must choose both the correct Python version and "bittedness". Even if you have a 64bit computer, if you installed a 32bit version of Python you must install the 32bit version of pywin32.

There is one binary per-version, per-bittedness. To determine what version of Python you have, start Python and look at the first line of the banner. Compare these 2:

Python 2.7.2+ ... [MSC v.1500 32 bit (Intel)] on win32
Python 2.7.2+ ... [MSC v.1500 64 bit (AMD64)] on win32
                              ^^^^^^^^^^^^^^

If the installation process informs you that Python is not found in the registry, it almost certainly means you have downloaded the wrong version - either for the wrong version of Python, or the wrong "bittedness".

But as above: .exe installers are deprecated - please use pip.

The changes

You should use pip:

pip install pywin32 --upgrade

More details in the README

.exe installers are now deprecated, but while they still exist, you must choose both the correct Python version and "bittedness". Even if you have a 64bit computer, if you installed a 32bit version of Python you must install the 32bit version of pywin32.

There is one binary per-version, per-bittedness. To determine what version of Python you have, start Python and look at the first line of the banner. Compare these 2:

Python 2.7.2+ ... [MSC v.1500 32 bit (Intel)] on win32
Python 2.7.2+ ... [MSC v.1500 64 bit (AMD64)] on win32
                              ^^^^^^^^^^^^^^

If the installation process informs you that Python is not found in the registry, it almost certainly means you have downloaded the wrong version - either for the wrong version of Python, or the wrong "bittedness".

But as above: .exe installers are deprecated - please use pip.

The changes

If you use pip: pip install pywin32 --upgrade

A number of things don't work via pip, so you may choose to install binaries - but you must choose both the correct Python version and "bittedness". Note that due to changes in Python there are no binary installers for version 3.10 32bit and later, so pypi is your only option there.

Even if you have a 64bit computer, if you installed a 32bit version of Python you must install the 32bit version of pywin32.

There is one binary per-version, per-bittedness. To determine what version of Python you have, start Python and look at the first line of the banner. Compare these 2:

Python 2.7.2+ ... [MSC v.1500 32 bit (Intel)] on win32
Python 2.7.2+ ... [MSC v.1500 64 bit (AMD64)] on win32
                              ^^^^^^^^^^^^^^

If the installation process informs you that Python is not found in the registry, it almost certainly means you have downloaded the wrong version - either for the wrong version of Python, or the wrong "bittedness".

The changes

If you use pip: pip install pywin32 --upgrade

A number of things don't work via pip, so you may choose to install binaries - but you must choose both the correct Python version and "bittedness". Note that due to changes in Python there are no binary installers for version 3.10 32bit, so pypi is your only option there.

Even if you have a 64bit computer, if you installed a 32bit version of Python you must install the 32bit version of pywin32.

There is one binary per-version, per-bittedness. To determine what version of Python you have, start Python and look at the first line of the banner. Compare these 2:

Python 2.7.2+ ... [MSC v.1500 32 bit (Intel)] on win32
Python 2.7.2+ ... [MSC v.1500 64 bit (AMD64)] on win32
                              ^^^^^^^^^^^^^^

If the installation process informs you that Python is not found in the registry, it almost certainly means you have downloaded the wrong version - either for the wrong version of Python, or the wrong "bittedness".

The changes

If you use pip: pip install pywin32 --upgrade

A number of things don't work via pip, so you may choose to install binaries - but you must choose both the correct Python version and "bittedness".

Even if you have a 64bit computer, if you installed a 32bit version of Python you must install the 32bit version of pywin32.

There is one binary per-version, per-bittedness. To determine what version of Python you have, start Python and look at the first line of the banner. Compare these 2:

Python 2.7.2+ ... [MSC v.1500 32 bit (Intel)] on win32
Python 2.7.2+ ... [MSC v.1500 64 bit (AMD64)] on win32
                              ^^^^^^^^^^^^^^

If the installation process informs you that Python is not found in the registry, it almost certainly means you have downloaded the wrong version - either for the wrong version of Python, or the wrong "bittedness".

The changes

If you use pip: pip install pywin32 --upgrade

A number of things don't work via pip, so you may choose to install binaries - but you must choose both the correct Python version and "bittedness".

Even if you have a 64bit computer, if you installed a 32bit version of Python you must install the 32bit version of pywin32.

There is one binary per-version, per-bittedness. To determine what version of Python you have, start Python and look at the first line of the banner. Compare these 2:

Python 2.7.2+ ... [MSC v.1500 32 bit (Intel)] on win32
Python 2.7.2+ ... [MSC v.1500 64 bit (AMD64)] on win32
                              ^^^^^^^^^^^^^^

If the installation process informs you that Python is not found in the registry, it almost certainly means you have downloaded the wrong version - either for the wrong version of Python, or the wrong "bittedness".

This is the first release to support only Python 3.5 and up - Python 2 is no longer supported. To celebrate, the build numbers have jumped to 300! There were significant changes in this release - you are encouraged to read CHANGES.txt carefully.

To download pywin32 binaries you must choose both the correct Python version and "bittedness".

Note that there is one download package for each supported version of Python - please check what version of Python you have installed and download the corresponding package.

Some packages have a 32bit and a 64bit version available - you must download the one which corresponds to the Python you have installed. Even if you have a 64bit computer, if you installed a 32bit version of Python you must install the 32bit version of pywin32.

To determine what version of Python you have, just start Python and look at the first line of the banner. A 32bit build will look something like

Python 3.8.1+ ... [MSC v.1913 32 bit (Intel)] on win32

While a 64bit build will look something like:

Python 3.8.1+ ... [MSC v.1913 64 bit (AMD64)] on win32

If the installation process informs you that Python is not found in the registry, it almost certainly means you have downloaded the wrong version - either for the wrong version of Python, or the wrong "bittedness".

To download pywin32 binaries you must choose both the correct Python version and "bittedness".

Note that there is one download package for each supported version of Python - please check what version of Python you have installed and download the corresponding package.

Some packages have a 32bit and a 64bit version available - you must download the one which corresponds to the Python you have installed. Even if you have a 64bit computer, if you installed a 32bit version of Python you must install the 32bit version of pywin32.

To determine what version of Python you have, just start Python and look at the first line of the banner. A 32bit build will look something like

Python 2.7.2+ ... [MSC v.1500 32 bit (Intel)] on win32

While a 64bit build will look something like:

Python 2.7.2+ ... [MSC v.1500 64 bit (AMD64)] on win32

If the installation process informs you that Python is not found in the registry, it almost certainly means you have downloaded the wrong version - either for the wrong version of Python, or the wrong "bittedness".

To download pywin32 binaries you must choose both the correct Python version and "bittedness".

Note that there is one download package for each supported version of Python - please check what version of Python you have installed and download the corresponding package.

Some packages have a 32bit and a 64bit version available - you must download the one which corresponds to the Python you have installed. Even if you have a 64bit computer, if you installed a 32bit version of Python you must install the 32bit version of pywin32.

To determine what version of Python you have, just start Python and look at the first line of the banner. A 32bit build will look something like

Python 2.7.2+ ... [MSC v.1500 32 bit (Intel)] on win32

While a 64bit build will look something like:

Python 2.7.2+ ... [MSC v.1500 64 bit (AMD64)] on win32

If the installation process informs you that Python is not found in the registry, it almost certainly means you have downloaded the wrong version - either for the wrong version of Python, or the wrong "bittedness".

To download pywin32 binaries you must choose both the correct Python version and "bittedness".

Note that there is one download package for each supported version of Python - please check what version of Python you have installed and download the corresponding package.

Some packages have a 32bit and a 64bit version available - you must download the one which corresponds to the Python you have installed. Even if you have a 64bit computer, if you installed a 32bit version of Python you must install the 32bit version of pywin32.

To determine what version of Python you have, just start Python and look at the first line of the banner. A 32bit build will look something like

Python 2.7.2+ ... [MSC v.1500 32 bit (Intel)] on win32

While a 64bit build will look something like:

Python 2.7.2+ ... [MSC v.1500 64 bit (AMD64)] on win32

If the installation process informs you that Python is not found in the registry, it almost certainly means you have downloaded the wrong version - either for the wrong version of Python, or the wrong "bittedness".