cut stringclasses 1
value | version stringclasses 10
values | idiom_id stringclasses 53
values | pep stringclasses 53
values | introduced_in stringclasses 11
values | form stringclasses 2
values | file stringclasses 887
values | code stringclasses 916
values | source stringclasses 1
value | origin stringlengths 15 17 | origin_revision stringclasses 10
values | license stringclasses 1
value |
|---|---|---|---|---|---|---|---|---|---|---|---|
train | 3.13 | readonly-items | 705 | 3.13 | modern | readonly-items/modern_19.py | class A(TypedDict):
x: ReadOnly[int]
class B(TypedDict):
x: ReadOnly[str]
class C(TypedDict):
x: int | str
def copy_and_modify(a: A) -> C:
c: C = copy.copy(a)
if not c['x']:
c['x'] = "N/A"
return c
def merge_and_modify(a: A, b: B) -> C:
c: C = a | b
if not c['x']:
c['... | pydocs | pep-0705.rst:474 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | readonly-items | 705 | 3.13 | modern | readonly-items/modern_20.py | @final
class D(TypedDict):
field: ReadOnly[Collection[str]]
@final
class E(TypedDict):
field: list[str]
e: E = { "field": ["value1", "value2"] }
d: D = e # Error?
| pydocs | pep-0705.rst:551 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | type-is | 742 | 3.13 | modern | type-is/modern_01.py | def narrower(x: I) -> TypeIs[R]: ...
def func1(val: A):
if narrower(val):
assert_type(val, NP)
else:
assert_type(val, NN)
| pydocs | pep-0742.rst:147 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | type-is | 742 | 3.13 | modern | type-is/modern_02.py | from typing import TypeIs, assert_type
def is_str(x: object) -> TypeIs[str]:
return isinstance(x, str)
def f(x: str | int) -> None:
if is_str(x):
assert_type(x, str)
else:
assert_type(x, int)
| pydocs | pep-0742.rst:173 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | type-is | 742 | 3.13 | modern | type-is/modern_03.py | from collections.abc import Awaitable
from typing import Any, TypeIs, assert_type
import inspect
def isawaitable(x: object) -> TypeIs[Awaitable[Any]]:
return inspect.isawaitable(x)
def f(x: Awaitable[int] | int) -> None:
if isawaitable(x):
# Type checkers may also infer the more precise type
#... | pydocs | pep-0742.rst:187 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | type-is | 742 | 3.13 | modern | type-is/modern_04.py | from typing import TypeIs
def is_str(x: int) -> TypeIs[str]: # Type checker error
...
| pydocs | pep-0742.rst:204 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | type-is | 742 | 3.13 | modern | type-is/modern_05.py | def takes_narrower(x: int | str, narrower: Callable[[object], TypeIs[int]]):
if narrower(x):
print(x + 1) # x is an int
else:
print("Hello " + x) # x is a str
def is_bool(x: object) -> TypeIs[bool]:
return isinstance(x, bool)
takes_narrower(1, is_bool) # Error: is_bool is not a TypeIs[i... | pydocs | pep-0742.rst:222 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | type-is | 742 | 3.13 | modern | type-is/modern_06.py | from typing import TypeIs, Literal
type Direction = Literal["N", "E", "S", "W"]
def is_direction(x: str) -> TypeIs[Direction]:
return x in {"N", "E", "S", "W"}
def maybe_direction(x: str) -> None:
if is_direction(x):
print(f"{x} is a cardinal direction")
else:
print(f"{x} is not a cardina... | pydocs | pep-0742.rst:280 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | type-is | 742 | 3.13 | modern | type-is/modern_07.py | from typing import TypeIs
# Correct
def good_typeis(x: object) -> TypeIs[int]:
return isinstance(x, int)
# Incorrect: does not return True for all ints
def bad_typeis1(x: object) -> TypeIs[int]:
return isinstance(x, int) and x > 0
# Incorrect: returns True for some non-ints
def bad_typeis2(x: object) -> Type... | pydocs | pep-0742.rst:307 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | type-is | 742 | 3.13 | modern | type-is/modern_08.py | from typing import TypedDict, TypeIs
class Point(TypedDict):
x: int
y: int
def is_point(x: object) -> TypeIs[Point]:
return (
isinstance(x, dict)
and all(isinstance(key, str) for key in x)
and "x" in x
and "y" in x
and isinstance(x["x"], int)
and isinstance(... | pydocs | pep-0742.rst:339 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | type-is | 742 | 3.13 | modern | type-is/modern_09.py | from typing import TypeGuard, TypeIs, reveal_type, final
class Base: ...
class Child(Base): ...
@final
class Unrelated: ...
def is_base_typeguard(x: object) -> TypeGuard[Base]:
return isinstance(x, Base)
def is_base_typeis(x: object) -> TypeIs[Base]:
return isinstance(x, Base)
def use_typeguard(x: Child | U... | pydocs | pep-0742.rst:388 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | modern | fstring/modern_01.py | import datetime
name = 'Fred'
age = 50
anniversary = datetime.date(1991, 10, 12)
f'My name is {name}, my age next year is {age+1}, my anniversary is {anniversary:%A, %B %d, %Y}.'
f'He said his name is {name!r}.'
| pydocs | pep-0498.rst:36 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | legacy | fstring/legacy_01.py | msg = 'disk failure'
'error: %s' % msg
| pydocs | pep-0498.rst:62 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | legacy | fstring/legacy_02.py | msg = ('disk failure', 32)
'error: %s' % msg
| pydocs | pep-0498.rst:68 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | legacy | fstring/legacy_03.py | 'error: %s' % (msg,)
| pydocs | pep-0498.rst:76 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | legacy | fstring/legacy_04.py | value = 4 * 20
'The value is {value}.'.format(value=value)
| pydocs | pep-0498.rst:90 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | legacy | fstring/legacy_05.py | 'The value is {}.'.format(value)
| pydocs | pep-0498.rst:98 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | modern | fstring/modern_02.py | f'The value is {value}.'
| pydocs | pep-0498.rst:103 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | modern | fstring/modern_03.py | value = 1234
f'input={value:#06x}'
| pydocs | pep-0498.rst:118 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | modern | fstring/modern_04.py | date = datetime.date(1991, 10, 12)
f'{date} was on a {date:%A}'
| pydocs | pep-0498.rst:125 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | legacy | fstring/legacy_06.py | def outer(x):
def inner():
return 'x={x}'.format_map(locals())
return inner
outer(42)()
| pydocs | pep-0498.rst:137 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | legacy | fstring/legacy_07.py | def outer(x):
def inner():
x
return 'x={x}'.format_map(locals())
return inner
outer(42)()
| pydocs | pep-0498.rst:152 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | modern | fstring/modern_05.py | f'{"quoted string"}'
| pydocs | pep-0498.rst:254 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | modern | fstring/modern_06.py | f'{{ {4*10} }}'
f'{{{4*10}}}'
| pydocs | pep-0498.rst:263 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | modern | fstring/modern_07.py | fr'x={4*10}\n'
| pydocs | pep-0498.rst:271 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | modern | fstring/modern_08.py | f"abc {a['x']} def"
| pydocs | pep-0498.rst:281 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | modern | fstring/modern_09.py | f'''abc {a['x']} def'''
| pydocs | pep-0498.rst:285 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | modern | fstring/modern_10.py | f'abc{expr1:spec1}{expr2!r:spec2}def{expr3}ghi'
| pydocs | pep-0498.rst:297 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | modern | fstring/modern_11.py | def foo():
return 20
f'result={foo()}'
| pydocs | pep-0498.rst:317 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | modern | fstring/modern_12.py | x = 0
f'''{x
+1}'''
d = {0: 'zero'}
f'''{d[0
]}'''
| pydocs | pep-0498.rst:334 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | modern | fstring/modern_13.py | width = 10
precision = 4
value = decimal.Decimal('12.34567')
f'result: {value:{width}.{precision}}'
| pydocs | pep-0498.rst:350 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | modern | fstring/modern_14.py | x = 10
y = 'hi'
'a' 'b' f'{x}' '{c}' f'str<{y:^4}>' 'd' 'e'
| pydocs | pep-0498.rst:368 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | modern | fstring/modern_15.py | d = {0:10, 1:20}
for i in range(3):
print(f'{i}:{d[i]}')
| pydocs | pep-0498.rst:413 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | modern | fstring/modern_16.py | for x in (32, 100, 'fifty'):
print(f'x = {x:+3}')
| pydocs | pep-0498.rst:425 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | modern | fstring/modern_17.py | def fn(l, incr):
result = l[0]
l[0] += incr
return result
lst = [0]
f'{fn(lst,2)} {fn(lst,3)}'
f'{fn(lst,2)} {fn(lst,3)}'
lst
| pydocs | pep-0498.rst:447 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | modern | fstring/modern_18.py | f'Column={col_idx+1}'
f'number of items: {len(items)}'
| pydocs | pep-0498.rst:521 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | modern | fstring/modern_19.py | col_number = col_idx+1
f'Column={col_number}'
n_items = len(items)
f'number of items: {n_items}'
| pydocs | pep-0498.rst:526 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | modern | fstring/modern_20.py | f'mapping is { {a:b for (a, b) in ((1, 2), (3, 4))} }'
| pydocs | pep-0498.rst:535 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | legacy | fstring/legacy_08.py | d = {'a': 10, 'b': 20}
'a={d[a]}'.format(d=d)
| pydocs | pep-0498.rst:554 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | modern | fstring/modern_21.py | f'a={d["a"]}'
| pydocs | pep-0498.rst:564 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | modern | fstring/modern_22.py | a = 'b'
f'a={d[a]}'
| pydocs | pep-0498.rst:570 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | legacy | fstring/legacy_09.py | '{i[";]}'.format(i={'";':4})
| pydocs | pep-0498.rst:580 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | modern | fstring/modern_23.py | header = 'Subject'
fr'{header}:\s+'
| pydocs | pep-0498.rst:600 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | modern | fstring/modern_24.py | a = 'some string'
f'{a!r}'
| pydocs | pep-0498.rst:635 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | modern | fstring/modern_25.py | f'{repr(a)}'
| pydocs | pep-0498.rst:641 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | modern | fstring/modern_26.py | f'{(lambda x: x*2)(3)}'
| pydocs | pep-0498.rst:664 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | modern | fstring/modern_27.py | extra = '{},waiters:{}'.format(extra, len(self._waiters))
extra = f'{extra},waiters:{len(self._waiters)}'
| pydocs | pep-0498.rst:686 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | modern | fstring/modern_28.py | message.append(" [line {0:2d}]".format(lineno))
message.append(f" [line {lineno:2d}]")
| pydocs | pep-0498.rst:691 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | modern | fstring/modern_29.py | methoddef_name = "{}_METHODDEF".format(c_basename.upper())
methoddef_name = f"{c_basename.upper()}_METHODDEF"
| pydocs | pep-0498.rst:696 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | fstring | 498 | 3.6 | modern | fstring/modern_30.py | print("Usage: {0} [{1}]".format(sys.argv[0], '|'.join('--'+opt for opt in valid_opts)), file=sys.stderr)
print(f"Usage: {sys.argv[0]} [{'|'.join('--'+opt for opt in valid_opts)}]", file=sys.stderr)
| pydocs | pep-0498.rst:701 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | legacy | walrus/legacy_01.py | match = re.match(data)
group = match.group(1) if match else None
| pydocs | pep-0572.rst:87 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | legacy | walrus/legacy_02.py | group = re.match(data).group(1) if re.match(data) else None
| pydocs | pep-0572.rst:92 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | legacy | walrus/legacy_03.py | match1 = pattern1.match(data)
match2 = pattern2.match(data)
if match1:
result = match1.group(1)
elif match2:
result = match2.group(2)
else:
result = None
| pydocs | pep-0572.rst:97 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | legacy | walrus/legacy_04.py | match1 = pattern1.match(data)
if match1:
result = match1.group(1)
else:
match2 = pattern2.match(data)
if match2:
result = match2.group(2)
else:
result = None
| pydocs | pep-0572.rst:110 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_01.py | # Handle a matched regex
if (match := pattern.search(data)) is not None:
...
# Do something with match
# A loop that can't be trivially rewritten using 2-arg iter()
while chunk := file.read(8192):
process(chunk)
# Reuse a value that's expensive to compute
[y := f(x), y**2, y**3]
# Share a subexpression be... | pydocs | pep-0572.rst:133 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_02.py | f'{(x:=10)}' # Valid, uses assignment expression
x = 10
f'{x:=10}' # Valid, passes '=10' to formatter
| pydocs | pep-0572.rst:222 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_03.py | if any((comment := line).startswith('#') for line in lines):
print("First comment:", comment)
else:
print("There are no comments")
if all((nonblank := line).strip() == '' for line in lines):
print("All lines are blank")
else:
print("First non-blank line:", nonblank)
| pydocs | pep-0572.rst:257 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_04.py | # Compute partial sums in a list comprehension
total = 0
partial_sums = [total := total + v for v in values]
print("Total:", total)
| pydocs | pep-0572.rst:270 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_05.py | [[(j := j) for i in range(5)] for j in range(5)] # INVALID
[i := 0 for i, j in stuff] # INVALID
[i+1 for i in (i := stuff)] # INVALID
| pydocs | pep-0572.rst:287 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_06.py | [False and (i := 0) for i, j in stuff] # INVALID
[i for i, j in stuff if True or (j := 1)] # INVALID
| pydocs | pep-0572.rst:299 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_07.py | [i+1 for i in (j := stuff)] # INVALID
[i+1 for i in range(2) for j in (k := stuff)] # INVALID
[i+1 for i in [j for j in (k := stuff)]] # INVALID
[i+1 for i in (lambda: (j := stuff))()] # INVALID
| pydocs | pep-0572.rst:316 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_08.py | class Example:
[(j := i) for i in range(5)] # INVALID
| pydocs | pep-0572.rst:327 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_09.py | # Valid
if any(len(longline := line) >= 100 for line in lines):
print("Extremely long line:", longline)
| pydocs | pep-0572.rst:386 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_10.py | x = 1, 2 # Sets x to (1, 2)
(x := 1, 2) # Sets x to 1
| pydocs | pep-0572.rst:433 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | legacy | walrus/legacy_05.py | env_base = os.environ.get("PYTHONUSERBASE", None)
if env_base:
return env_base
| pydocs | pep-0572.rst:491 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_11.py | if env_base := os.environ.get("PYTHONUSERBASE", None):
return env_base
| pydocs | pep-0572.rst:497 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | legacy | walrus/legacy_06.py | if self._is_special:
ans = self._check_nans(context=context)
if ans:
return ans
| pydocs | pep-0572.rst:507 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_12.py | if self._is_special and (ans := self._check_nans(context=context)):
return ans
| pydocs | pep-0572.rst:514 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | legacy | walrus/legacy_07.py | reductor = dispatch_table.get(cls)
if reductor:
rv = reductor(x)
else:
reductor = getattr(x, "__reduce_ex__", None)
if reductor:
rv = reductor(4)
else:
reductor = getattr(x, "__reduce__", None)
if reductor:
rv = reductor()
else:
raise Error(
... | pydocs | pep-0572.rst:525 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_13.py | if reductor := dispatch_table.get(cls):
rv = reductor(x)
elif reductor := getattr(x, "__reduce_ex__", None):
rv = reductor(4)
elif reductor := getattr(x, "__reduce__", None):
rv = reductor()
else:
raise Error("un(deep)copyable object of type %s" % cls)
| pydocs | pep-0572.rst:542 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | legacy | walrus/legacy_08.py | s = _format_time(self._hour, self._minute,
self._second, self._microsecond,
timespec)
tz = self._tzstr()
if tz:
s += tz
return s
| pydocs | pep-0572.rst:559 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_14.py | s = _format_time(self._hour, self._minute,
self._second, self._microsecond,
timespec)
if tz := self._tzstr():
s += tz
return s
| pydocs | pep-0572.rst:569 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | legacy | walrus/legacy_09.py | while True:
line = fp.readline()
if not line:
break
m = define_rx.match(line)
if m:
n, v = m.group(1, 2)
try:
v = int(v)
except ValueError:
pass
vars[n] = v
else:
m = undef_rx.match(line)
if m:
vars[m.group(1... | pydocs | pep-0572.rst:585 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_15.py | while line := fp.readline():
if m := define_rx.match(line):
n, v = m.group(1, 2)
try:
v = int(v)
except ValueError:
pass
vars[n] = v
elif m := undef_rx.match(line):
vars[m.group(1)] = 0
| pydocs | pep-0572.rst:604 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_16.py | results = [(x, y, x/y) for x in input_data if (y := f(x)) > 0]
| pydocs | pep-0572.rst:622 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_17.py | stuff = [[y := f(x), x/y] for x in range(5)]
| pydocs | pep-0572.rst:627 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_18.py | # Loop-and-a-half
while (command := input("> ")) != "quit":
print("You entered:", command)
# Capturing regular expression match objects
# See, for instance, Lib/pydoc.py, which uses a multiline spelling
# of this effect
if match := re.search(pat, text):
print("Found:", match.group(0))
# The same syntax chains ... | pydocs | pep-0572.rst:639 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_19.py | if pid := os.fork():
...
# Parent code
else:
...
# Child code
| pydocs | pep-0572.rst:669 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_20.py | pos = -1
while pos := buffer.find(search_term, pos + 1) >= 0:
...
| pydocs | pep-0572.rst:862 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_21.py | (point := (x, y))
(point := x, y)
| pydocs | pep-0572.rst:882 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_22.py | foo(x := 1, y)
foo(x := (1, y))
| pydocs | pep-0572.rst:892 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_23.py | # Top level in if
if match := pattern.match(line):
return match.group(1)
# Short call
len(lines := f.readlines())
| pydocs | pep-0572.rst:907 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | legacy | walrus/legacy_10.py | mylast = mylast[1]
yield mylast[0]
| pydocs | pep-0572.rst:996 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_24.py | yield (mylast := mylast[1])[0]
| pydocs | pep-0572.rst:1001 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | legacy | walrus/legacy_11.py | while True:
old = total
total += term
if old == total:
return total
term *= mx2 / (i*(i+1))
i += 2
| pydocs | pep-0572.rst:1009 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_25.py | while total != (total := total + term):
term *= mx2 / (i*(i+1))
i += 2
return total
| pydocs | pep-0572.rst:1019 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | legacy | walrus/legacy_12.py | result = solution(xs, n)
if result:
...
# use result
| pydocs | pep-0572.rst:1037 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_26.py | if result := solution(xs, n):
...
# use result
| pydocs | pep-0572.rst:1044 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | legacy | walrus/legacy_13.py | reductor = dispatch_table.get(cls)
if reductor:
rv = reductor(x)
else:
reductor = getattr(x, "__reduce_ex__", None)
if reductor:
rv = reductor(4)
else:
reductor = getattr(x, "__reduce__", None)
if reductor:
rv = reductor()
else:
raise Error("un(sha... | pydocs | pep-0572.rst:1057 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_27.py | if reductor := dispatch_table.get(cls):
rv = reductor(x)
elif reductor := getattr(x, "__reduce_ex__", None):
rv = reductor(4)
elif reductor := getattr(x, "__reduce__", None):
rv = reductor()
else:
raise Error("un(shallow)copyable object of type %s" % cls)
| pydocs | pep-0572.rst:1074 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | legacy | walrus/legacy_14.py | diff = x - x_base
if diff:
g = gcd(diff, n)
if g > 1:
return g
| pydocs | pep-0572.rst:1091 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_28.py | if (diff := x - x_base) and (g := gcd(diff, n)) > 1:
return g
| pydocs | pep-0572.rst:1099 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_29.py | while a > (d := x // a**(n-1)):
a = ((n-1)*a + d) // n
return a
| pydocs | pep-0572.rst:1122 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | legacy | walrus/legacy_15.py | while True:
d = x // a**(n-1)
if a <= d:
break
a = ((n-1)*a + d) // n
return a
| pydocs | pep-0572.rst:1140 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_30.py | def f():
a = [TARGET := EXPR for VAR in ITERABLE]
| pydocs | pep-0572.rst:1192 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_31.py | def f():
global TARGET
a = [TARGET := EXPR for VAR in ITERABLE]
| pydocs | pep-0572.rst:1211 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_32.py | def g():
TARGET = ...
def f():
nonlocal TARGET
a = [TARGET := EXPR for VAR in ITERABLE]
| pydocs | pep-0572.rst:1230 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_33.py | def f():
a = [[TARGET := i for i in range(3)] for j in range(2)]
# I.e., a = [[0, 1, 2], [0, 1, 2]]
print(TARGET) # prints 2
| pydocs | pep-0572.rst:1253 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | walrus | 572 | 3.8 | modern | walrus/modern_34.py | a = 42
def f():
# `a` is local to `f`, but remains unbound
# until the caller executes this genexp:
yield ((a := i) for i in range(3))
yield lambda: a + 100
print("done")
try:
print(f"`a` is bound to {a}")
assert False
except UnboundLocalError:
print("`a` is not yet b... | pydocs | pep-0572.rst:1284 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
train | 3.13 | pattern-matching | 634 | 3.10 | modern | pattern-matching/modern_01.py | match command.split():
case [action, obj]:
... # interpret action, obj
| pydocs | pep-0636.rst:66 | fb134c39c42a8d461083b42b0507f0c6aee2d0d4 | CC0-1.0 |
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