ModuleNotFoundError: No module named 'tap_intercom'

[alex-danilin]

I'm trying to build a Docker image to connect Intercom to BigQuery. My Dockerfile is as follows:

FROM python:3
RUN apt-get update
# Configs
COPY ./configs /configs
RUN git clone https://github.com/singer-io/tap-intercom
RUN pip install virtualenv
RUN virtualenv -p python /virtualenvs/intercom
RUN /bin/bash -c "source /virtualenvs/intercom/bin/activate && python /tap-intercom/setup.py install && deactivate"
RUN /virtualenvs/intercom/bin/tap-intercom --config /configs/intercom-config.json --catalog /configs/intercom-catalog.json > /configs/state.json
ENTRYPOINT /bin/bash

After running
docker build --tag singer .
it fails with this traceback:

=> ERROR [8/8] RUN /virtualenvs/intercom/bin/tap-intercom --config /configs/intercom-config.json --catalog /conf  0.5s
------
 > [8/8] RUN /virtualenvs/intercom/bin/tap-intercom --config /configs/intercom-config.json --catalog /configs/intercom-catalog.json > /configs/state.json:
#12 0.431 Traceback (most recent call last):
#12 0.431   File "/virtualenvs/intercom/bin/tap-intercom", line 33, in <module>
#12 0.431     sys.exit(load_entry_point('tap-intercom==1.1.3', 'console_scripts', 'tap-intercom')())
#12 0.431   File "/virtualenvs/intercom/bin/tap-intercom", line 25, in importlib_load_entry_point
#12 0.431     return next(matches).load()
#12 0.431   File "/usr/local/lib/python3.9/importlib/metadata.py", line 77, in load
#12 0.431     module = import_module(match.group('module'))
#12 0.431   File "/usr/local/lib/python3.9/importlib/__init__.py", line 127, in import_module
#12 0.431     return _bootstrap._gcd_import(name[level:], package, level)
#12 0.432   File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
#12 0.432   File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
#12 0.432   File "<frozen importlib._bootstrap>", line 984, in _find_and_load_unlocked
#12 0.432 ModuleNotFoundError: No module named 'tap_intercom'
------
executor failed running [/bin/sh -c /virtualenvs/intercom/bin/tap-intercom --config /configs/intercom-config.json --catalog /configs/intercom-catalog.json > /configs/state.json]: exit code: 1

I've tried different python versions and it didn't help. What might be the reason for this behavior?