Problem with installing svgwrite about example-object-tracker HOT 6 CLOSED

please try the command below to install svgwrite.

mendel@deft-goose:~$ sudo pip3 install svgwrite
Collecting svgwrite
  Using cached https://files.pythonhosted.org/packages/84/15/640e399579024a6875918839454025bb1d5f850bb70d96a11eabb644d11c/svgwrite-1.4.3-py3-none-any.whl
Installing collected packages: svgwrite
Successfully installed svgwrite-1.4.3
mendel@deft-goose:~$ 

mendel@deft-goose:~$ python3 -m pip install svgwrite
Collecting svgwrite
  Downloading https://files.pythonhosted.org/packages/84/15/640e399579024a6875918839454025bb1d5f850bb70d96a11eabb644d11c/svgwrite-1.4.3-py3-none-any.whl (67kB)
    100% |████████████████████████████████| 71kB 1.6MB/s 
Installing collected packages: svgwrite
Successfully installed svgwrite-1.4.3

from example-object-tracker.

They both (sudo pip3 and python3 -m pip) give the same result as above.

from example-object-tracker.

Running sudo apt update && sudo apt upgrade shows I`m on the latest versions of all packages.

Reading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

from example-object-tracker.

Running
sudo apt install python3-svgwrite
I was able to install it.

However, there's the same / a very similar problem now with filterpy which is a requirement for the tracker:
From the requirements_for_sort_tracker.txt: filterpy==1.4.5
EDIT: The Error comes from filterpy.

Error:
Exception: Traceback (most recent call last): File "/usr/lib/python3/dist-packages/pip/_internal/cli/base_command.py", line 143, in main status = self.run(options, args) File "/usr/lib/python3/dist-packages/pip/_internal/commands/install.py", line 338, in run resolver.resolve(requirement_set) File "/usr/lib/python3/dist-packages/pip/_internal/resolve.py", line 102, in resolve self._resolve_one(requirement_set, req) File "/usr/lib/python3/dist-packages/pip/_internal/resolve.py", line 261, in _resolve_one check_dist_requires_python(dist) File "/usr/lib/python3/dist-packages/pip/_internal/utils/packaging.py", line 55, in check_dist_requires_python if not check_requires_python(requires_python): File "/usr/lib/python3/dist-packages/pip/_internal/utils/packaging.py", line 33, in check_requires_python return python_version in requires_python_specifier File "/usr/share/python-wheels/packaging-19.0-py2.py3-none-any.whl/packaging/specifiers.py", line 676, in __contains__ return self.contains(item) File "/usr/share/python-wheels/packaging-19.0-py2.py3-none-any.whl/packaging/specifiers.py", line 681, in contains item = parse(item) File "/usr/share/python-wheels/packaging-19.0-py2.py3-none-any.whl/packaging/version.py", line 28, in parse return Version(version) File "/usr/share/python-wheels/packaging-19.0-py2.py3-none-any.whl/packaging/version.py", line 219, in __init__ match = self._regex.search(version) TypeError: expected string or bytes-like object

from example-object-tracker.

I was able to install filterpy manually.

From the Github:
https://github.com/rlabbe/filterpy

In the README

cd <directory you want to install to>
git clone http://github.com/rlabbe/filterpy
python setup.py install

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