jinja2.exceptions.TemplateSyntaxError in .circleci/config.yml

[Nick Steel]

I see the following traceback when running the cookiecutter as directed in the readme:

Traceback (most recent call last):
  File "/home/nick/.virtualenvs/mopidy3/bin/cookiecutter", line 8, in <module>
    sys.exit(main())
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/click/core.py", line 764, in __call__
    return self.main(*args, **kwargs)
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/click/core.py", line 717, in main
    rv = self.invoke(ctx)
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/click/core.py", line 956, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/click/core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/cookiecutter/cli.py", line 120, in main
    password=os.environ.get('COOKIECUTTER_REPO_PASSWORD')
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/cookiecutter/main.py", line 94, in cookiecutter
    output_dir=output_dir
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/cookiecutter/generate.py", line 364, in generate_files
    generate_file(project_dir, infile, context, env)
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/cookiecutter/generate.py", line 166, in generate_file
    tmpl = env.get_template(infile_fwd_slashes)
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/jinja2/environment.py", line 830, in get_template
    return self._load_template(name, self.make_globals(globals))
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/jinja2/environment.py", line 804, in _load_template
    template = self.loader.load(self, name, globals)
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/jinja2/loaders.py", line 125, in load
    code = environment.compile(source, name, filename)
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/jinja2/environment.py", line 591, in compile
    self.handle_exception(exc_info, source_hint=source_hint)
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/jinja2/environment.py", line 780, in handle_exception
    reraise(exc_type, exc_value, tb)
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/jinja2/_compat.py", line 37, in reraise
    raise value.with_traceback(tb)
  File "./.circleci/config.yml", line 24, in template
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/jinja2/environment.py", line 497, in _parse
    return Parser(self, source, name, encode_filename(filename)).parse()
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/jinja2/parser.py", line 901, in parse
    result = nodes.Template(self.subparse(), lineno=1)
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/jinja2/parser.py", line 875, in subparse
    add_data(self.parse_tuple(with_condexpr=True))
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/jinja2/parser.py", line 620, in parse_tuple
    args.append(parse())
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/jinja2/parser.py", line 432, in parse_expression
    return self.parse_condexpr()
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/jinja2/parser.py", line 437, in parse_condexpr
    expr1 = self.parse_or()
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/jinja2/parser.py", line 450, in parse_or
    left = self.parse_and()
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/jinja2/parser.py", line 459, in parse_and
    left = self.parse_not()
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/jinja2/parser.py", line 470, in parse_not
    return self.parse_compare()
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/jinja2/parser.py", line 474, in parse_compare
    expr = self.parse_math1()
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/jinja2/parser.py", line 496, in parse_math1
    left = self.parse_concat()
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/jinja2/parser.py", line 507, in parse_concat
    args = [self.parse_math2()]
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/jinja2/parser.py", line 517, in parse_math2
    left = self.parse_pow()
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/jinja2/parser.py", line 528, in parse_pow
    left = self.parse_unary()
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/jinja2/parser.py", line 546, in parse_unary
    node = self.parse_primary()
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/jinja2/parser.py", line 583, in parse_primary
    self.fail("unexpected '%s'" % describe_token(token), token.lineno)
  File "/home/nick/.virtualenvs/mopidy3/lib/python3.7/site-packages/jinja2/parser.py", line 59, in fail
    raise exc(msg, lineno, self.name, self.filename)
jinja2.exceptions.TemplateSyntaxError: unexpected '.'
  File "./.circleci/config.yml", line 24
    key: tox-v1-{{ .Environment.CIRCLE_JOB }}-{{ checksum "setup.cfg" }}

We need to ignore these Jinja template items, they are not meant for cookiecutter