set_up.py missing tensorflow

[idiomaticrefactoring]

Describe the bug

the project needs TensorFlow, but set_up.py does not contain the package. Although the requirements.txt contain the package, but when execute the command: pip install -e ., it will not install the package and occur no module error? Actually, is there any reason that not containing TensorFlow in set_up.py???

To Reproduce

pip3 install -e .
python3 -m pytest -v tests/unit_test/processor_units/test_processor_units.py
============================= test session starts ==============================
platform linux -- Python 3.7.12, pytest-6.2.5, py-1.11.0, pluggy-1.0.0 -- /mnt/zejun/smp/data/python_star_2000repo/MatchZoo/venv_test_7/bin/python3.7
cachedir: .pytest_cache
rootdir: /mnt/zejun/smp/data/python_star_2000repo/MatchZoo
plugins: cov-3.0.0, mock-3.6.1
collecting ... collected 0 items / 1 error

==================================== ERRORS ====================================
___ ERROR collecting tests/unit_test/processor_units/test_processor_units.py ___
ImportError while importing test module '/mnt/zejun/smp/data/python_star_2000repo/MatchZoo/tests/unit_test/processor_units/test_processor_units.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/usr/lib/python3.7/importlib/init.py:127: in import_module
return _bootstrap._gcd_import(name[level:], package, level)
tests/unit_test/processor_units/test_processor_units.py:4: in
from matchzoo.preprocessors import units
matchzoo/init.py:20: in
from . import preprocessors
matchzoo/preprocessors/init.py:1: in
from . import units
matchzoo/preprocessors/units/init.py:13: in
from .tokenize import Tokenize
matchzoo/preprocessors/units/tokenize.py:2: in
from matchzoo.utils.bert_utils import is_chinese_char,
matchzoo/utils/init.py:4: in
from .make_keras_optimizer_picklable import make_keras_optimizer_picklable
matchzoo/utils/make_keras_optimizer_picklable.py:1: in
import keras
venv_test_7/lib/python3.7/site-packages/keras/init.py:21: in
from tensorflow.python import tf2
E ModuleNotFoundError: No module named 'tensorflow'
=========================== short test summary info ============================
ERROR tests/unit_test/processor_units/test_processor_units.py
!!!!!!!!!!!!!!!!!!!! Interrupted: 1 error during collection !!!!!!!!!!!!!!!!!!!!
=============================== 1 error in 0.91s ===============================

Describe your attempts

• I checked the documentation and found no answer
• I checked to make sure that this is not a duplicate issue

Context

• Ubutun

[joelrorseth]

Bump, I'm getting the same error after pip install matchzoo and attempting to import via import matchzoo as mz.