Python: What does the slash mean in help() output?
What does the / mean in Python 3.4's help output for range before the closing parenthesis?
>>> help(range)
Help on class range in module builtins:
class range(object)
| range(stop) -> range object
| range(start, stop[, step]) -> range object
|
| Return a virtual sequence of numbers from start to stop by step.
|
| Methods defined here:
|
| __contains__(self, key, /)
| Return key in self.
|
| __eq__(self, value, /)
| Return self==value.
...
python python-3.x introspection
edited Feb 25 at 2:07
jamesdlin
27.4k66398
asked Jul 14 '14 at 11:15
JoschuaJoschua
2,47122138
add a comment |
What does the / mean in Python 3.4's help output for range before the closing parenthesis?
>>> help(range)
Help on class range in module builtins:
class range(object)
| range(stop) -> range object
| range(start, stop[, step]) -> range object
|
| Return a virtual sequence of numbers from start to stop by step.
|
| Methods defined here:
|
| __contains__(self, key, /)
| Return key in self.
|
| __eq__(self, value, /)
| Return self==value.
...
python python-3.x introspection
edited Feb 25 at 2:07
jamesdlin
27.4k66398
asked Jul 14 '14 at 11:15
JoschuaJoschua
2,47122138
add a comment |
What does the / mean in Python 3.4's help output for range before the closing parenthesis?
>>> help(range)
Help on class range in module builtins:
class range(object)
| range(stop) -> range object
| range(start, stop[, step]) -> range object
|
| Return a virtual sequence of numbers from start to stop by step.
|
| Methods defined here:
|
| __contains__(self, key, /)
| Return key in self.
|
| __eq__(self, value, /)
| Return self==value.
...
python python-3.x introspection
edited Feb 25 at 2:07
jamesdlin
27.4k66398
asked Jul 14 '14 at 11:15
JoschuaJoschua
2,47122138
What does the / mean in Python 3.4's help output for range before the closing parenthesis?
>>> help(range)
Help on class range in module builtins:
class range(object)
| range(stop) -> range object
| range(start, stop[, step]) -> range object
|
| Return a virtual sequence of numbers from start to stop by step.
|
| Methods defined here:
|
| __contains__(self, key, /)
| Return key in self.
|
| __eq__(self, value, /)
| Return self==value.
...
python python-3.x introspection
python python-3.x introspection
edited Feb 25 at 2:07
jamesdlin
27.4k66398
asked Jul 14 '14 at 11:15
JoschuaJoschua
2,47122138
edited Feb 25 at 2:07
jamesdlin
27.4k66398
asked Jul 14 '14 at 11:15
JoschuaJoschua
2,47122138
edited Feb 25 at 2:07
jamesdlin
27.4k66398
edited Feb 25 at 2:07
jamesdlin
27.4k66398
edited Feb 25 at 2:07
jamesdlin
27.4k66398
27.4k66398
asked Jul 14 '14 at 11:15
JoschuaJoschua
2,47122138
asked Jul 14 '14 at 11:15
JoschuaJoschua
2,47122138
asked Jul 14 '14 at 11:15
JoschuaJoschua
2,47122138
2,47122138
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
It signifies the end of the positional only parameters, parameters you cannot use as keyword parameters. Such parameters can only be specified in the C API.
It means the key argument to __contains__ can only be passed in by position (range(5).__contains__(3)), not as a keyword argument (range(5).__contains__(key=3)), something you can do with positional arguments in pure-python functions.
Also see the Argument Clinic documentation:
To mark all parameters as positional-only in Argument Clinic, add a
/on a line by itself after the last parameter, indented the same as the parameter lines.
The syntax has also been defined for possible future inclusion in Python, see PEP 457 - Syntax For Positional-Only Parameters. At the moment the PEP acts as a reservation on the syntax, there are no actual plans to implement it as such.
answered Jul 14 '14 at 11:32
Martijn Pieters♦Martijn Pieters
724k14325452348
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
It signifies the end of the positional only parameters, parameters you cannot use as keyword parameters. Such parameters can only be specified in the C API.
It means the key argument to __contains__ can only be passed in by position (range(5).__contains__(3)), not as a keyword argument (range(5).__contains__(key=3)), something you can do with positional arguments in pure-python functions.
Also see the Argument Clinic documentation:
To mark all parameters as positional-only in Argument Clinic, add a
/on a line by itself after the last parameter, indented the same as the parameter lines.
The syntax has also been defined for possible future inclusion in Python, see PEP 457 - Syntax For Positional-Only Parameters. At the moment the PEP acts as a reservation on the syntax, there are no actual plans to implement it as such.
answered Jul 14 '14 at 11:32
Martijn Pieters♦Martijn Pieters
724k14325452348
add a comment |
It signifies the end of the positional only parameters, parameters you cannot use as keyword parameters. Such parameters can only be specified in the C API.
It means the key argument to __contains__ can only be passed in by position (range(5).__contains__(3)), not as a keyword argument (range(5).__contains__(key=3)), something you can do with positional arguments in pure-python functions.
Also see the Argument Clinic documentation:
To mark all parameters as positional-only in Argument Clinic, add a
/on a line by itself after the last parameter, indented the same as the parameter lines.
The syntax has also been defined for possible future inclusion in Python, see PEP 457 - Syntax For Positional-Only Parameters. At the moment the PEP acts as a reservation on the syntax, there are no actual plans to implement it as such.
answered Jul 14 '14 at 11:32
Martijn Pieters♦Martijn Pieters
724k14325452348
add a comment |
It signifies the end of the positional only parameters, parameters you cannot use as keyword parameters. Such parameters can only be specified in the C API.
It means the key argument to __contains__ can only be passed in by position (range(5).__contains__(3)), not as a keyword argument (range(5).__contains__(key=3)), something you can do with positional arguments in pure-python functions.
Also see the Argument Clinic documentation:
To mark all parameters as positional-only in Argument Clinic, add a
/on a line by itself after the last parameter, indented the same as the parameter lines.
The syntax has also been defined for possible future inclusion in Python, see PEP 457 - Syntax For Positional-Only Parameters. At the moment the PEP acts as a reservation on the syntax, there are no actual plans to implement it as such.
answered Jul 14 '14 at 11:32
Martijn Pieters♦Martijn Pieters
724k14325452348
It signifies the end of the positional only parameters, parameters you cannot use as keyword parameters. Such parameters can only be specified in the C API.
It means the key argument to __contains__ can only be passed in by position (range(5).__contains__(3)), not as a keyword argument (range(5).__contains__(key=3)), something you can do with positional arguments in pure-python functions.
Also see the Argument Clinic documentation:
To mark all parameters as positional-only in Argument Clinic, add a
/on a line by itself after the last parameter, indented the same as the parameter lines.
The syntax has also been defined for possible future inclusion in Python, see PEP 457 - Syntax For Positional-Only Parameters. At the moment the PEP acts as a reservation on the syntax, there are no actual plans to implement it as such.
answered Jul 14 '14 at 11:32
Martijn Pieters♦Martijn Pieters
724k14325452348
edited Jan 31 '15 at 8:36
answered Jul 14 '14 at 11:32
Martijn Pieters♦Martijn Pieters
724k14325452348
answered Jul 14 '14 at 11:32
Martijn Pieters♦Martijn Pieters
724k14325452348
answered Jul 14 '14 at 11:32
Martijn Pieters♦Martijn Pieters
724k14325452348
724k14325452348
add a comment |
add a comment |
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