TACTIC supports Python 3 & tips for upgrading your environment

[Celton McGrath]

Hey TACTICians!

We are excited to announce that TACTIC 4.7 supports Python 3. We have worked hard over the last few months to accommodate Python 3 changes, and are also grateful for some community contribution as well.

For the time being, we will support both Python 2 and 3, though we recommend upgrading to Python 3 soon. 
 
Below is some tips on upgrading your environments to Python 3. We will be releasing more official documentation in the near future.

For now, please discuss below.

Best,

Celton

Steps to update RHEL Environment 

1. Install python3 

2. Replace /lib/python2.7/site-packages/tacticenv/__init__.py with latest 4.7 file /src/install/data/__init__.py

3. Copy  /lib/python2.7/site-packages/tacticenv into /lib/python3.7/site-packages

4. Install updated Python 3 modules: pycryptodomex, lxml, jaraco.functools, psycopg2, pytz
* We recommend using pip and installing under python 3.

Code:

python3 -m pip install pycryptodomex

5. Install updated TACTIC Python 3 service by copying src/install/service/tactic_python3 into /etc/init.d/

6. Update your TACTIC config file to use Python 3 for all services by updating <python> tag:

<services>
...
<python>python3</python>

...
</services>


7. We recommend removing all *.pyc files from your TACTIC source code since we have moved and updated certain packages into TACTIC/3rd_party/

Steps to update Windows/NT Environment 
* Almost the same as RHEL environment with some adjustments


1. Install python3 



2. Replace C:\Python27\Lib\site-packages\tacticenv\__init__.py with latest 4.7 file \src\install\data\__init__.py


3. Copy  C:\Python27\Lib\site-packages\tacticenv into C:\Python37\Lib\site-packages

4. Install updated Python 3 modules: pycryptodomex, lxml, jaraco.windows, psycopg2, pytz
* We recommend using pip and installing under python 3.

Code:

python3 -m pip install pycryptodomex

5. Install Windows service Python 3 module: pywin32

6. Update your TACTIC config file to use Python 3 for all services by updating <python> tag:

<services>
...
<python>python3</python>

...
</services>


7. We recommend removing all *.pyc files from your TACTIC source code since we have moved and updated certain packages into TACTIC/3rd_party/

8. You can now install the new Python 3 TACTIC Windows service. Remove the Python3 TACTIC Windows service and install under Python 3 using,

Code:

python3 src/install/service/win32_service.py install

** At the time we tested this (Sept 2019), we had issues running the Python 3 Windows Service. The workaround required us to copy dll files from,


C:\Python37\Lib\site-packages\pywin32_system32



to

C:\Python37\Lib\site-packages\win32

The TACTIC service should run after this. If this does not solve service issues, try running TACTIC in debug mode:

Code:

python3 src/install/service/win32_service.py debug