The 'Try It' code on singer.io doesn't work

[gamebusterz]

The try it https://www.singer.io/#what-it-is code on singer.io doesn't work

After installing
pip3 install target-csv tap-exchangeratesapi

Executing
tap-exchangeratesapi | target-csv

Throws the below error:

Traceback (most recent call last):
  File "/usr/local/bin/tap-exchangeratesapi", line 8, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.7/site-packages/tap_exchangeratesapi/__init__.py", line 113, in main
    start_date = singer.utils.strptime_with_tz(start_date).date().strftime(DATE_FORMAT)
AttributeError: module 'singer.utils' has no attribute 'strptime_with_tz'

MacOS Mojave (10.14.6)

[TjrGithub]

It doesn't work on Ubuntu Linux 19.10 either, but for different reasons:
python3.7 -m venv venv-target-csv
. venv-target-csv/bin/activate
pip install target-csv tap-exchangeratesapi
tap-exchangeratesapi | target-csv

Traceback (most recent call last):
File "/home/tjb/Dokumente/cologne_2018/Karriere/optiker-datenanalyse/tmp/singer/venv-target-csv/lib/python3.7/site-packages/pkg_resources/init.py", line 583, in _build_master
ws.require(requires)
File "/home/tjb/Dokumente/cologne_2018/Karriere/optiker-datenanalyse/tmp/singer/venv-target-csv/lib/python3.7/site-packages/pkg_resources/init.py", line 900, in require
needed = self.resolve(parse_requirements(requirements))
File "/home/tjb/Dokumente/cologne_2018/Karriere/optiker-datenanalyse/tmp/singer/venv-target-csv/lib/python3.7/site-packages/pkg_resources/init.py", line 791, in resolve
raise VersionConflict(dist, req).with_context(dependent_req)
pkg_resources.ContextualVersionConflict: (singer-python 2.1.4 (/home/tjb/Dokumente/cologne_2018/Karriere/optiker-datenanalyse/tmp/singer/venv-target-csv/lib/python3.7/site-packages), Requirement.parse('singer-python==5.3.3'), {'tap-exchangeratesapi'})

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/home/tjb/Dokumente/cologne_2018/Karriere/optiker-datenanalyse/tmp/singer/venv-target-csv/bin/tap-exchangeratesapi", line 6, in
from pkg_resources import load_entry_point
File "/home/tjb/Dokumente/cologne_2018/Karriere/optiker-datenanalyse/tmp/singer/venv-target-csv/lib/python3.7/site-packages/pkg_resources/init.py", line 3191, in
@_call_aside
File "/home/tjb/Dokumente/cologne_2018/Karriere/optiker-datenanalyse/tmp/singer/venv-target-csv/lib/python3.7/site-packages/pkg_resources/init.py", line 3175, in _call_aside
f(*args, **kwargs)
File "/home/tjb/Dokumente/cologne_2018/Karriere/optiker-datenanalyse/tmp/singer/venv-target-csv/lib/python3.7/site-packages/pkg_resources/init.py", line 3204, in _initialize_master_working_set
working_set = WorkingSet._build_master()
File "/home/tjb/Dokumente/cologne_2018/Karriere/optiker-datenanalyse/tmp/singer/venv-target-csv/lib/python3.7/site-packages/pkg_resources/init.py", line 585, in _build_master
return cls._build_from_requirements(requires)
File "/home/tjb/Dokumente/cologne_2018/Karriere/optiker-datenanalyse/tmp/singer/venv-target-csv/lib/python3.7/site-packages/pkg_resources/init.py", line 598, in _build_from_requirements
dists = ws.resolve(reqs, Environment())
File "/home/tjb/Dokumente/cologne_2018/Karriere/optiker-datenanalyse/tmp/singer/venv-target-csv/lib/python3.7/site-packages/pkg_resources/init.py", line 786, in resolve
raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'singer-python==5.3.3' distribution was not found and is required by tap-exchangeratesapi

[TjrGithub]

It doesn't work in Docker's python container, either, but at least it installs:

docker container run -it python /bin/bash
deactivate; rm -rf venv-target-csv/ ; python3.8 -m venv venv-target-csv/ ; . venv-target-csv/bin/activate ; pip install --upgrade pip ; pip install wheel; pip install target-csv
deactivate; rm -rf venv-tap-exchangeratesapi/ ; python3.8 -m venv venv-tap-exchangeratesapi/ ; . venv-tap-exchangeratesapi/bin/activate ; pip install --upgrade pip ; pip install wheel; pip install tap-exchangeratesapi ; tap-exchangeratesapi >/dev/null

#result: headers but no numbers
venv-tap-exchangeratesapi/bin/tap-exchangeratesapi | venv-target-csv/bin/python venv-target-csv/bin/target-csv
#result: silent failure, no file exchange_rates.csv

[deanmorin]

Installing the tap and targets in separate virtual environments fixes this issue, but then you get:

Traceback (most recent call last):
  File "/Users/dean/.virtualenvs/tap-exchangeratesapi/bin/tap-exchangeratesapi", line 8, in <module>
    sys.exit(main())
  File "/Users/dean/.virtualenvs/tap-exchangeratesapi/lib/python3.8/site-packages/tap_exchangeratesapi/__init__.py", line 116, in main
    do_sync(config.get('base', 'USD'), start_date)
  File "/Users/dean/.virtualenvs/tap-exchangeratesapi/lib/python3.8/site-packages/tap_exchangeratesapi/__init__.py", line 65, in do_sync
    for rate in payload['rates']:
KeyError: 'rates'

When I inspect payload I see:

{'success': False, 'error': {'code': 101, 'type': 'missing_access_key', 'info': 'You have not supplied an API Access Key. [Required format: access_key=YOUR_ACCESS_KEY]'}}

Given that this "try it" code is many people's first exposure to singer, it really seems like it should be switched to a different tap.