Empty step pattern is giving "Cannot find step definition" when specified at the end of a step sentence

I am using Python 2.7.10, MacOS Sierra version 10.12.4 and Radish-BDD version 0.4.1

With the feature file of:

Feature: A test feature for issues with tags specified after a scenario outline examples table
  A feature description here

  Scenario: Fruit Consumption 2
    Given I have a appple
    When I eat the apple
    Then I get lots of fiber

steps.py contents:

from radish import given, when, then


@given('I have a {}')
def my_step(step, fruit):
    pass


@when('I {} the {}')
def my_step(step, method, fruit):
    pass


@then('I get lots of {}')
def my_setp(step, what):
    pass

Then:

Error: Cannot find step definition for step 'Given I have a apple' in tests/stuff/features/stuff.feature:13

Error Oracle says:
There is no step defintion for 'Given I have a apple'.
All steps should be declared in a module located in tests/stuff.
For example you could do:

@step(r"Given I have a apple")
def my_step(step):
    raise NotImplementedError("This step is not implemented yet")

A workaround for using empty step patterns is (Adding something like a period or word after the {}):

NOTE: Your scenario sentences in your feature file will require adding the . or word to the end of the sentence also.

@step(r'I have a {}.')
def my_step(step, user):
    pass


@when(r'I {} the {}.')
def my_step(step, method, fruit):
    pass


@then(r'I get lots of {}.')
def my_step(step, what):
    pass

An alternative work-around is to use regexes as such:

import re

from radish import given, when, then


@given(re.compile(r'I have a (.+)'))
def my_step(step, fruit):
    pass


@when(re.compile(r'I (.+?) the (.+)'))
def my_step(step, method, fruit):
    pass


@then(re.compile(r'I get lots of (.+)'))
def my_step(step, what):
    pass

[timofurrer]

I’ve created an issue in the parse project: https://github.com/r1chardj0n3s/parse/issues/41

[rscrimojr]

Looking at the radish source code. In matcher.py I see that this may be a bug in the third-party library parse…

On second thought, parse looks fine:

Python 2.7.10 (default, Feb  6 2017, 23:53:20)
[GCC 4.2.1 Compatible Apple LLVM 8.0.0 (clang-800.0.34)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import parse
>>> parse.__version__
'1.8.0'
>>> parse.parse('I have a {}', 'I have a apple')
<Result ('apple',) {}>
>>>

However, this gives as interesting outcome:

>>> patt = parse.compile('I have a {}')
>>> patt.search('I have a apple')
<Result ('a',) {}>
>>> patt.parse('I have a apple')
<Result ('apple',) {}>

and

>>> patt = parse.compile('I {} a {}')
>>> patt.parse('I have a apple')
<Result ('have', 'apple') {}>
>>> patt.search('I have a apple')
<Result ('have', 'a') {}>

Looks like search() is giving a weird result, parse() looks correct.