Welcome, fellow programmer!
frozendict is a simple immutable dictionary. Unlike other similar
implementations, immutability is guaranteed: you can't change the internal
variables of the class, and they are all immutable objects. Reinvoking
__init__ does not alter the object.
The API is the same as dict, without methods that can change the immutability.
So it supports also fromkeys, unlike other implementations. Furthermore it
can be pickled, unpickled and have an hash, if all values are hashable.
You can also add any dict to a frozendict using the | operator. The result is a new frozendict.
Examples:
from frozendict import frozendict
fd = frozendict({"Sulla": "Marco", "Hicks": "Bill"})
print(fd)
# frozendict({'Sulla': 'Marco', 'Hicks': 'Bill'})
print(fd["Sulla"])
# Marco
fd["God"]
# KeyError: 'God'
len(fd)
# 2
"Sulla" in fd
# True
"Sulla" not in fd
# False
"God" in fd
# False
hash(fd)
# 5833699487320513741
fd_unhashable = frozendict({1: []})
hash(fd_unhashable)
# TypeError: Not all values are hashable.
fd | {1: 2}
# frozendict({'Sulla': 'Marco', 'Hicks': 'Bill', 1: 2})
fd5 = frozendict(fd)
id_fd5 = id(fd5)
fd5 |= {1: 2}
fd5
# frozendict.frozendict({'Sulla': 'Marco', 'Hicks': 'Bill', 1: 2})
id(fd5) != id_fd5
# True
fd2 = fd.copy()
fd2 == fd
# True
fd3 = frozendict(fd)
fd3 == fd
# True
fd4 = frozendict({"Hicks": "Bill", "Sulla": "Marco"})
print(fd4)
# frozendict({'Hicks': 'Bill', 'Sulla': 'Marco'})
fd4 == fd
# True
import pickle
fd_unpickled = pickle.loads(pickle.dumps(fd))
print(fd_unpickled)
# frozendict({'Sulla': 'Marco', 'Hicks': 'Bill'})
fd_unpickled == fd
# True
frozendict(Sulla="Marco", Hicks="Bill")
# frozendict({'Sulla': 'Marco', 'Hicks': 'Bill'}
frozendict((("Sulla", "Marco"), ("Hicks", "Bill")))
# frozendict({'Sulla': 'Marco', 'Hicks': 'Bill'})
fd.get("Sulla")
# 'Marco'
print(fd.get("God"))
# None
tuple(fd.keys())
# ('Sulla', 'Hicks')
tuple(fd.values())
# ('Marco', 'Bill')
tuple(fd.items())
# (('Sulla', 'Marco'), ('Hicks', 'Bill'))
frozendict.fromkeys(["Marco", "Giulia"], "Sulla")
# frozendict({'Marco': 'Sulla', 'Giulia': 'Sulla'})
iter(fd)
# <dict_keyiterator object at 0x7feb75c49188>
fd["Sulla"] = "Silla"
# TypeError: 'frozendict' object doesn't support item assignmentSome benchmarks between dict and coold, a C-only extended and experimental version of frozendict[1]:
################################################################################
////////////////////////////////////////////////////////////////////////////////
Name: `constructor(d)`; Size: 5; Keys: str; Type: dict; Time: 7.88e-08; Sigma: 5e-09
Name: `constructor(d)`; Size: 5; Keys: str; Type: coold; Time: 2.99e-07; Sigma: 3e-09
////////////////////////////////////////////////////////////////////////////////
Name: `constructor(d)`; Size: 5; Keys: int; Type: dict; Time: 8.16e-08; Sigma: 4e-09
Name: `constructor(d)`; Size: 5; Keys: int; Type: coold; Time: 3.12e-07; Sigma: 2e-09
////////////////////////////////////////////////////////////////////////////////
Name: `constructor(d)`; Size: 1000; Keys: str; Type: dict; Time: 5.90e-06; Sigma: 5e-07
Name: `constructor(d)`; Size: 1000; Keys: str; Type: coold; Time: 5.22e-05; Sigma: 8e-07
////////////////////////////////////////////////////////////////////////////////
Name: `constructor(d)`; Size: 1000; Keys: int; Type: dict; Time: 3.44e-06; Sigma: 2e-07
Name: `constructor(d)`; Size: 1000; Keys: int; Type: coold; Time: 4.05e-05; Sigma: 1e-06
################################################################################
////////////////////////////////////////////////////////////////////////////////
Name: `constructor(kwargs)`; Size: 5; Keys: str; Type: dict; Time: 2.38e-07; Sigma: 2e-09
Name: `constructor(kwargs)`; Size: 5; Keys: str; Type: coold; Time: 2.25e-07; Sigma: 1e-09
////////////////////////////////////////////////////////////////////////////////
Name: `constructor(kwargs)`; Size: 1000; Keys: str; Type: dict; Time: 4.67e-05; Sigma: 1e-06
Name: `constructor(kwargs)`; Size: 1000; Keys: str; Type: coold; Time: 2.73e-05; Sigma: 6e-07
################################################################################
////////////////////////////////////////////////////////////////////////////////
Name: `constructor(seq2)`; Size: 5; Keys: str; Type: dict; Time: 2.01e-07; Sigma: 2e-09
Name: `constructor(seq2)`; Size: 5; Keys: str; Type: coold; Time: 2.44e-07; Sigma: 1e-09
////////////////////////////////////////////////////////////////////////////////
Name: `constructor(seq2)`; Size: 5; Keys: int; Type: dict; Time: 2.18e-07; Sigma: 3e-09
Name: `constructor(seq2)`; Size: 5; Keys: int; Type: coold; Time: 2.59e-07; Sigma: 5e-09
////////////////////////////////////////////////////////////////////////////////
Name: `constructor(seq2)`; Size: 1000; Keys: str; Type: dict; Time: 4.22e-05; Sigma: 6e-07
Name: `constructor(seq2)`; Size: 1000; Keys: str; Type: coold; Time: 4.20e-05; Sigma: 6e-07
////////////////////////////////////////////////////////////////////////////////
Name: `constructor(seq2)`; Size: 1000; Keys: int; Type: dict; Time: 2.98e-05; Sigma: 3e-07
Name: `constructor(seq2)`; Size: 1000; Keys: int; Type: coold; Time: 3.08e-05; Sigma: 5e-07
################################################################################
////////////////////////////////////////////////////////////////////////////////
Name: `constructor(o)`; Size: 5; Keys: str; Type: dict; Time: 7.88e-08; Sigma: 5e-09
Name: `constructor(o)`; Size: 5; Keys: str; Type: coold; Time: 2.58e-08; Sigma: 2e-09
////////////////////////////////////////////////////////////////////////////////
Name: `constructor(o)`; Size: 5; Keys: int; Type: dict; Time: 8.35e-08; Sigma: 3e-09
Name: `constructor(o)`; Size: 5; Keys: int; Type: coold; Time: 2.58e-08; Sigma: 2e-09
////////////////////////////////////////////////////////////////////////////////
Name: `constructor(o)`; Size: 1000; Keys: str; Type: dict; Time: 6.09e-06; Sigma: 2e-07
Name: `constructor(o)`; Size: 1000; Keys: str; Type: coold; Time: 2.58e-08; Sigma: 2e-09
////////////////////////////////////////////////////////////////////////////////
Name: `constructor(o)`; Size: 1000; Keys: int; Type: dict; Time: 3.48e-06; Sigma: 2e-07
Name: `constructor(o)`; Size: 1000; Keys: int; Type: coold; Time: 2.58e-08; Sigma: 2e-09
################################################################################
////////////////////////////////////////////////////////////////////////////////
Name: `o.copy()`; Size: 5; Keys: str; Type: dict; Time: 7.08e-08; Sigma: 4e-09
Name: `o.copy()`; Size: 5; Keys: str; Type: coold; Time: 3.35e-08; Sigma: 2e-09
////////////////////////////////////////////////////////////////////////////////
Name: `o.copy()`; Size: 5; Keys: int; Type: dict; Time: 7.18e-08; Sigma: 5e-09
Name: `o.copy()`; Size: 5; Keys: int; Type: coold; Time: 3.35e-08; Sigma: 2e-09
////////////////////////////////////////////////////////////////////////////////
Name: `o.copy()`; Size: 1000; Keys: str; Type: dict; Time: 6.10e-06; Sigma: 2e-07
Name: `o.copy()`; Size: 1000; Keys: str; Type: coold; Time: 3.35e-08; Sigma: 2e-09
////////////////////////////////////////////////////////////////////////////////
Name: `o.copy()`; Size: 1000; Keys: int; Type: dict; Time: 3.46e-06; Sigma: 2e-07
Name: `o.copy()`; Size: 1000; Keys: int; Type: coold; Time: 3.35e-08; Sigma: 2e-09
################################################################################
////////////////////////////////////////////////////////////////////////////////
Name: `o == o`; Size: 5; Keys: str; Type: dict; Time: 7.21e-08; Sigma: 3e-10
Name: `o == o`; Size: 5; Keys: str; Type: coold; Time: 2.78e-08; Sigma: 1e-09
////////////////////////////////////////////////////////////////////////////////
Name: `o == o`; Size: 5; Keys: int; Type: dict; Time: 7.27e-08; Sigma: 1e-09
Name: `o == o`; Size: 5; Keys: int; Type: coold; Time: 2.78e-08; Sigma: 1e-09
////////////////////////////////////////////////////////////////////////////////
Name: `o == o`; Size: 1000; Keys: str; Type: dict; Time: 1.36e-05; Sigma: 2e-07
Name: `o == o`; Size: 1000; Keys: str; Type: coold; Time: 2.78e-08; Sigma: 1e-09
////////////////////////////////////////////////////////////////////////////////
Name: `o == o`; Size: 1000; Keys: int; Type: dict; Time: 1.00e-05; Sigma: 7e-08
Name: `o == o`; Size: 1000; Keys: int; Type: coold; Time: 2.78e-08; Sigma: 9e-10
################################################################################
////////////////////////////////////////////////////////////////////////////////
Name: `for x in o`; Size: 5; Keys: str; Type: dict; Time: 7.91e-08; Sigma: 1e-09
Name: `for x in o`; Size: 5; Keys: str; Type: coold; Time: 7.08e-08; Sigma: 2e-09
////////////////////////////////////////////////////////////////////////////////
Name: `for x in o`; Size: 5; Keys: int; Type: dict; Time: 7.91e-08; Sigma: 1e-09
Name: `for x in o`; Size: 5; Keys: int; Type: coold; Time: 7.08e-08; Sigma: 2e-09
////////////////////////////////////////////////////////////////////////////////
Name: `for x in o`; Size: 1000; Keys: str; Type: dict; Time: 9.82e-06; Sigma: 4e-08
Name: `for x in o`; Size: 1000; Keys: str; Type: coold; Time: 8.10e-06; Sigma: 3e-08
////////////////////////////////////////////////////////////////////////////////
Name: `for x in o`; Size: 1000; Keys: int; Type: dict; Time: 9.79e-06; Sigma: 3e-08
Name: `for x in o`; Size: 1000; Keys: int; Type: coold; Time: 8.07e-06; Sigma: 3e-08
################################################################################
////////////////////////////////////////////////////////////////////////////////
Name: `for x in o.values()`; Size: 5; Keys: str; Type: dict; Time: 8.22e-08; Sigma: 1e-09
Name: `for x in o.values()`; Size: 5; Keys: str; Type: coold; Time: 6.83e-08; Sigma: 1e-09
////////////////////////////////////////////////////////////////////////////////
Name: `for x in o.values()`; Size: 5; Keys: int; Type: dict; Time: 8.24e-08; Sigma: 1e-09
Name: `for x in o.values()`; Size: 5; Keys: int; Type: coold; Time: 6.83e-08; Sigma: 1e-09
////////////////////////////////////////////////////////////////////////////////
Name: `for x in o.values()`; Size: 1000; Keys: str; Type: dict; Time: 1.07e-05; Sigma: 4e-08
Name: `for x in o.values()`; Size: 1000; Keys: str; Type: coold; Time: 8.13e-06; Sigma: 3e-08
////////////////////////////////////////////////////////////////////////////////
Name: `for x in o.values()`; Size: 1000; Keys: int; Type: dict; Time: 1.07e-05; Sigma: 3e-08
Name: `for x in o.values()`; Size: 1000; Keys: int; Type: coold; Time: 8.07e-06; Sigma: 2e-08
################################################################################
////////////////////////////////////////////////////////////////////////////////
Name: `for x in o.items()`; Size: 5; Keys: str; Type: dict; Time: 1.19e-07; Sigma: 3e-09
Name: `for x in o.items()`; Size: 5; Keys: str; Type: coold; Time: 1.20e-07; Sigma: 3e-09
////////////////////////////////////////////////////////////////////////////////
Name: `for x in o.items()`; Size: 5; Keys: int; Type: dict; Time: 1.21e-07; Sigma: 3e-09
Name: `for x in o.items()`; Size: 5; Keys: int; Type: coold; Time: 1.21e-07; Sigma: 2e-09
////////////////////////////////////////////////////////////////////////////////
Name: `for x in o.items()`; Size: 1000; Keys: str; Type: dict; Time: 1.64e-05; Sigma: 4e-07
Name: `for x in o.items()`; Size: 1000; Keys: str; Type: coold; Time: 1.64e-05; Sigma: 2e-07
////////////////////////////////////////////////////////////////////////////////
Name: `for x in o.items()`; Size: 1000; Keys: int; Type: dict; Time: 1.65e-05; Sigma: 4e-07
Name: `for x in o.items()`; Size: 1000; Keys: int; Type: coold; Time: 1.65e-05; Sigma: 4e-07
################################################################################
////////////////////////////////////////////////////////////////////////////////
Name: `pickle.dumps(o)`; Size: 5; Keys: str; Type: dict; Time: 6.50e-07; Sigma: 3e-08
Name: `pickle.dumps(o)`; Size: 5; Keys: str; Type: coold; Time: 2.76e-06; Sigma: 7e-08
////////////////////////////////////////////////////////////////////////////////
Name: `pickle.dumps(o)`; Size: 5; Keys: int; Type: dict; Time: 4.59e-07; Sigma: 3e-08
Name: `pickle.dumps(o)`; Size: 5; Keys: int; Type: coold; Time: 2.56e-06; Sigma: 1e-07
////////////////////////////////////////////////////////////////////////////////
Name: `pickle.dumps(o)`; Size: 1000; Keys: str; Type: dict; Time: 1.26e-04; Sigma: 2e-06
Name: `pickle.dumps(o)`; Size: 1000; Keys: str; Type: coold; Time: 1.93e-04; Sigma: 3e-06
////////////////////////////////////////////////////////////////////////////////
Name: `pickle.dumps(o)`; Size: 1000; Keys: int; Type: dict; Time: 2.88e-05; Sigma: 5e-07
Name: `pickle.dumps(o)`; Size: 1000; Keys: int; Type: coold; Time: 7.31e-05; Sigma: 1e-06
################################################################################
////////////////////////////////////////////////////////////////////////////////
Name: `pickle.loads(dump)`; Size: 5; Keys: str; Type: dict; Time: 8.95e-07; Sigma: 2e-08
Name: `pickle.loads(dump)`; Size: 5; Keys: str; Type: coold; Time: 2.07e-06; Sigma: 5e-08
////////////////////////////////////////////////////////////////////////////////
Name: `pickle.loads(dump)`; Size: 5; Keys: int; Type: dict; Time: 4.46e-07; Sigma: 1e-08
Name: `pickle.loads(dump)`; Size: 5; Keys: int; Type: coold; Time: 1.62e-06; Sigma: 7e-08
////////////////////////////////////////////////////////////////////////////////
Name: `pickle.loads(dump)`; Size: 1000; Keys: str; Type: dict; Time: 1.56e-04; Sigma: 7e-06
Name: `pickle.loads(dump)`; Size: 1000; Keys: str; Type: coold; Time: 2.21e-04; Sigma: 7e-06
////////////////////////////////////////////////////////////////////////////////
Name: `pickle.loads(dump)`; Size: 1000; Keys: int; Type: dict; Time: 5.61e-05; Sigma: 1e-06
Name: `pickle.loads(dump)`; Size: 1000; Keys: int; Type: coold; Time: 1.00e-04; Sigma: 3e-06
################################################################################
////////////////////////////////////////////////////////////////////////////////
Name: `class.fromkeys()`; Size: 5; Keys: str; Type: dict; Time: 1.84e-07; Sigma: 6e-09
Name: `class.fromkeys()`; Size: 5; Keys: str; Type: coold; Time: 2.15e-07; Sigma: 9e-09
////////////////////////////////////////////////////////////////////////////////
Name: `class.fromkeys()`; Size: 5; Keys: int; Type: dict; Time: 2.10e-07; Sigma: 6e-09
Name: `class.fromkeys()`; Size: 5; Keys: int; Type: coold; Time: 2.31e-07; Sigma: 6e-09
////////////////////////////////////////////////////////////////////////////////
Name: `class.fromkeys()`; Size: 1000; Keys: str; Type: dict; Time: 3.99e-05; Sigma: 7e-07
Name: `class.fromkeys()`; Size: 1000; Keys: str; Type: coold; Time: 3.83e-05; Sigma: 5e-07
////////////////////////////////////////////////////////////////////////////////
Name: `class.fromkeys()`; Size: 1000; Keys: int; Type: dict; Time: 2.96e-05; Sigma: 5e-07
Name: `class.fromkeys()`; Size: 1000; Keys: int; Type: coold; Time: 2.90e-05; Sigma: 4e-07
################################################################################
////////////////////////////////////////////////////////////////////////////////
Name: `for x in o.keys()`; Size: 5; Keys: str; Type: dict; Time: 7.65e-08; Sigma: 1e-09
Name: `for x in o.keys()`; Size: 5; Keys: str; Type: coold; Time: 6.91e-08; Sigma: 2e-09
////////////////////////////////////////////////////////////////////////////////
Name: `for x in o.keys()`; Size: 5; Keys: int; Type: dict; Time: 7.65e-08; Sigma: 1e-09
Name: `for x in o.keys()`; Size: 5; Keys: int; Type: coold; Time: 6.86e-08; Sigma: 3e-09
////////////////////////////////////////////////////////////////////////////////
Name: `for x in o.keys()`; Size: 1000; Keys: str; Type: dict; Time: 9.81e-06; Sigma: 3e-08
Name: `for x in o.keys()`; Size: 1000; Keys: str; Type: coold; Time: 8.09e-06; Sigma: 3e-08
////////////////////////////////////////////////////////////////////////////////
Name: `for x in o.keys()`; Size: 1000; Keys: int; Type: dict; Time: 9.81e-06; Sigma: 3e-08
Name: `for x in o.keys()`; Size: 1000; Keys: int; Type: coold; Time: 8.07e-06; Sigma: 2e-08
################################################################################
////////////////////////////////////////////////////////////////////////////////
Name: `for x in iter(o)`; Size: 5; Keys: str; Type: dict; Time: 1.00e-07; Sigma: 3e-09
Name: `for x in iter(o)`; Size: 5; Keys: str; Type: coold; Time: 9.19e-08; Sigma: 3e-09
////////////////////////////////////////////////////////////////////////////////
Name: `for x in iter(o)`; Size: 5; Keys: int; Type: dict; Time: 1.00e-07; Sigma: 3e-09
Name: `for x in iter(o)`; Size: 5; Keys: int; Type: coold; Time: 9.20e-08; Sigma: 3e-09
////////////////////////////////////////////////////////////////////////////////
Name: `for x in iter(o)`; Size: 1000; Keys: str; Type: dict; Time: 9.85e-06; Sigma: 3e-08
Name: `for x in iter(o)`; Size: 1000; Keys: str; Type: coold; Time: 8.13e-06; Sigma: 4e-08
////////////////////////////////////////////////////////////////////////////////
Name: `for x in iter(o)`; Size: 1000; Keys: int; Type: dict; Time: 9.82e-06; Sigma: 4e-08
Name: `for x in iter(o)`; Size: 1000; Keys: int; Type: coold; Time: 8.10e-06; Sigma: 3e-08
################################################################################
////////////////////////////////////////////////////////////////////////////////
Name: `o == d`; Size: 5; Keys: str; Type: dict; Time: 7.45e-08; Sigma: 6e-10
Name: `o == d`; Size: 5; Keys: str; Type: coold; Time: 7.96e-08; Sigma: 1e-09
////////////////////////////////////////////////////////////////////////////////
Name: `o == d`; Size: 5; Keys: int; Type: dict; Time: 7.30e-08; Sigma: 8e-10
Name: `o == d`; Size: 5; Keys: int; Type: coold; Time: 8.90e-08; Sigma: 2e-09
////////////////////////////////////////////////////////////////////////////////
Name: `o == d`; Size: 1000; Keys: str; Type: dict; Time: 1.37e-05; Sigma: 2e-07
Name: `o == d`; Size: 1000; Keys: str; Type: coold; Time: 1.58e-05; Sigma: 2e-07
////////////////////////////////////////////////////////////////////////////////
Name: `o == d`; Size: 1000; Keys: int; Type: dict; Time: 1.01e-05; Sigma: 7e-08
Name: `o == d`; Size: 1000; Keys: int; Type: coold; Time: 1.20e-05; Sigma: 1e-07
################################################################################
////////////////////////////////////////////////////////////////////////////////
Name: `o.get(key)`; Size: 5; Keys: str; Type: dict; Time: 2.95e-08; Sigma: 5e-09
Name: `o.get(key)`; Size: 5; Keys: str; Type: coold; Time: 2.98e-08; Sigma: 4e-09
////////////////////////////////////////////////////////////////////////////////
Name: `o.get(key)`; Size: 5; Keys: int; Type: dict; Time: 2.89e-08; Sigma: 4e-09
Name: `o.get(key)`; Size: 5; Keys: int; Type: coold; Time: 2.90e-08; Sigma: 5e-09
////////////////////////////////////////////////////////////////////////////////
Name: `o.get(key)`; Size: 1000; Keys: str; Type: dict; Time: 3.09e-08; Sigma: 3e-09
Name: `o.get(key)`; Size: 1000; Keys: str; Type: coold; Time: 3.04e-08; Sigma: 3e-09
////////////////////////////////////////////////////////////////////////////////
Name: `o.get(key)`; Size: 1000; Keys: int; Type: dict; Time: 2.98e-08; Sigma: 4e-09
Name: `o.get(key)`; Size: 1000; Keys: int; Type: coold; Time: 2.95e-08; Sigma: 4e-09
################################################################################
////////////////////////////////////////////////////////////////////////////////
Name: `o[key]`; Size: 5; Keys: str; Type: dict; Time: 2.81e-08; Sigma: 6e-10
Name: `o[key]`; Size: 5; Keys: str; Type: coold; Time: 2.81e-08; Sigma: 7e-10
////////////////////////////////////////////////////////////////////////////////
Name: `o[key]`; Size: 5; Keys: int; Type: dict; Time: 2.97e-08; Sigma: 6e-10
Name: `o[key]`; Size: 5; Keys: int; Type: coold; Time: 3.03e-08; Sigma: 1e-09
////////////////////////////////////////////////////////////////////////////////
Name: `o[key]`; Size: 1000; Keys: str; Type: dict; Time: 2.84e-08; Sigma: 6e-10
Name: `o[key]`; Size: 1000; Keys: str; Type: coold; Time: 2.75e-08; Sigma: 1e-09
////////////////////////////////////////////////////////////////////////////////
Name: `o[key]`; Size: 1000; Keys: int; Type: dict; Time: 3.05e-08; Sigma: 8e-10
Name: `o[key]`; Size: 1000; Keys: int; Type: coold; Time: 3.07e-08; Sigma: 1e-09
################################################################################
////////////////////////////////////////////////////////////////////////////////
Name: `key in o`; Size: 5; Keys: str; Type: dict; Time: 2.29e-08; Sigma: 4e-09
Name: `key in o`; Size: 5; Keys: str; Type: coold; Time: 2.32e-08; Sigma: 4e-09
////////////////////////////////////////////////////////////////////////////////
Name: `key in o`; Size: 5; Keys: int; Type: dict; Time: 2.26e-08; Sigma: 5e-09
Name: `key in o`; Size: 5; Keys: int; Type: coold; Time: 2.22e-08; Sigma: 5e-09
////////////////////////////////////////////////////////////////////////////////
Name: `key in o`; Size: 1000; Keys: str; Type: dict; Time: 2.44e-08; Sigma: 3e-09
Name: `key in o`; Size: 1000; Keys: str; Type: coold; Time: 2.35e-08; Sigma: 3e-09
////////////////////////////////////////////////////////////////////////////////
Name: `key in o`; Size: 1000; Keys: int; Type: dict; Time: 2.38e-08; Sigma: 3e-09
Name: `key in o`; Size: 1000; Keys: int; Type: coold; Time: 2.33e-08; Sigma: 3e-09
################################################################################
////////////////////////////////////////////////////////////////////////////////
Name: `key not in o`; Size: 5; Keys: str; Type: dict; Time: 2.29e-08; Sigma: 4e-09
Name: `key not in o`; Size: 5; Keys: str; Type: coold; Time: 2.32e-08; Sigma: 4e-09
////////////////////////////////////////////////////////////////////////////////
Name: `key not in o`; Size: 5; Keys: int; Type: dict; Time: 2.26e-08; Sigma: 5e-09
Name: `key not in o`; Size: 5; Keys: int; Type: coold; Time: 2.23e-08; Sigma: 5e-09
////////////////////////////////////////////////////////////////////////////////
Name: `key not in o`; Size: 1000; Keys: str; Type: dict; Time: 2.44e-08; Sigma: 3e-09
Name: `key not in o`; Size: 1000; Keys: str; Type: coold; Time: 2.38e-08; Sigma: 3e-09
////////////////////////////////////////////////////////////////////////////////
Name: `key not in o`; Size: 1000; Keys: int; Type: dict; Time: 2.38e-08; Sigma: 3e-09
Name: `key not in o`; Size: 1000; Keys: int; Type: coold; Time: 2.35e-08; Sigma: 3e-09
################################################################################
////////////////////////////////////////////////////////////////////////////////
Name: `hash(o)`; Size: 5; Keys: str; Type: coold; Time: 4.17e-08; Sigma: 1e-09
////////////////////////////////////////////////////////////////////////////////
Name: `hash(o)`; Size: 5; Keys: int; Type: coold; Time: 4.19e-08; Sigma: 1e-09
////////////////////////////////////////////////////////////////////////////////
Name: `hash(o)`; Size: 1000; Keys: str; Type: coold; Time: 4.15e-08; Sigma: 1e-09
////////////////////////////////////////////////////////////////////////////////
Name: `hash(o)`; Size: 1000; Keys: int; Type: coold; Time: 4.15e-08; Sigma: 2e-09
################################################################################
////////////////////////////////////////////////////////////////////////////////
Name: `len(o)`; Size: 5; Keys: str; Type: dict; Time: 3.21e-08; Sigma: 2e-09
Name: `len(o)`; Size: 5; Keys: str; Type: coold; Time: 3.21e-08; Sigma: 2e-09
////////////////////////////////////////////////////////////////////////////////
Name: `len(o)`; Size: 5; Keys: int; Type: dict; Time: 3.21e-08; Sigma: 2e-09
Name: `len(o)`; Size: 5; Keys: int; Type: coold; Time: 3.21e-08; Sigma: 2e-09
////////////////////////////////////////////////////////////////////////////////
Name: `len(o)`; Size: 1000; Keys: str; Type: dict; Time: 3.95e-08; Sigma: 2e-09
Name: `len(o)`; Size: 1000; Keys: str; Type: coold; Time: 3.95e-08; Sigma: 2e-09
////////////////////////////////////////////////////////////////////////////////
Name: `len(o)`; Size: 1000; Keys: int; Type: dict; Time: 3.95e-08; Sigma: 2e-09
Name: `len(o)`; Size: 1000; Keys: int; Type: coold; Time: 3.95e-08; Sigma: 2e-09
################################################################################
////////////////////////////////////////////////////////////////////////////////
Name: `o.keys()`; Size: 5; Keys: str; Type: dict; Time: 3.27e-08; Sigma: 2e-09
Name: `o.keys()`; Size: 5; Keys: str; Type: coold; Time: 3.44e-08; Sigma: 2e-09
////////////////////////////////////////////////////////////////////////////////
Name: `o.keys()`; Size: 5; Keys: int; Type: dict; Time: 3.27e-08; Sigma: 2e-09
Name: `o.keys()`; Size: 5; Keys: int; Type: coold; Time: 3.41e-08; Sigma: 2e-09
////////////////////////////////////////////////////////////////////////////////
Name: `o.keys()`; Size: 1000; Keys: str; Type: dict; Time: 3.26e-08; Sigma: 2e-09
Name: `o.keys()`; Size: 1000; Keys: str; Type: coold; Time: 3.45e-08; Sigma: 2e-09
////////////////////////////////////////////////////////////////////////////////
Name: `o.keys()`; Size: 1000; Keys: int; Type: dict; Time: 3.27e-08; Sigma: 2e-09
Name: `o.keys()`; Size: 1000; Keys: int; Type: coold; Time: 3.41e-08; Sigma: 2e-09
################################################################################
////////////////////////////////////////////////////////////////////////////////
Name: `o.values()`; Size: 5; Keys: str; Type: dict; Time: 3.23e-08; Sigma: 2e-09
Name: `o.values()`; Size: 5; Keys: str; Type: coold; Time: 3.44e-08; Sigma: 2e-09
////////////////////////////////////////////////////////////////////////////////
Name: `o.values()`; Size: 5; Keys: int; Type: dict; Time: 3.23e-08; Sigma: 2e-09
Name: `o.values()`; Size: 5; Keys: int; Type: coold; Time: 3.44e-08; Sigma: 2e-09
////////////////////////////////////////////////////////////////////////////////
Name: `o.values()`; Size: 1000; Keys: str; Type: dict; Time: 3.24e-08; Sigma: 2e-09
Name: `o.values()`; Size: 1000; Keys: str; Type: coold; Time: 3.44e-08; Sigma: 2e-09
////////////////////////////////////////////////////////////////////////////////
Name: `o.values()`; Size: 1000; Keys: int; Type: dict; Time: 3.23e-08; Sigma: 2e-09
Name: `o.values()`; Size: 1000; Keys: int; Type: coold; Time: 3.44e-08; Sigma: 2e-09
################################################################################
////////////////////////////////////////////////////////////////////////////////
Name: `o.items()`; Size: 5; Keys: str; Type: dict; Time: 3.22e-08; Sigma: 2e-09
Name: `o.items()`; Size: 5; Keys: str; Type: coold; Time: 3.50e-08; Sigma: 2e-09
////////////////////////////////////////////////////////////////////////////////
Name: `o.items()`; Size: 5; Keys: int; Type: dict; Time: 3.18e-08; Sigma: 3e-09
Name: `o.items()`; Size: 5; Keys: int; Type: coold; Time: 3.50e-08; Sigma: 2e-09
////////////////////////////////////////////////////////////////////////////////
Name: `o.items()`; Size: 1000; Keys: str; Type: dict; Time: 3.24e-08; Sigma: 2e-09
Name: `o.items()`; Size: 1000; Keys: str; Type: coold; Time: 3.48e-08; Sigma: 2e-09
////////////////////////////////////////////////////////////////////////////////
Name: `o.items()`; Size: 1000; Keys: int; Type: dict; Time: 3.24e-08; Sigma: 2e-09
Name: `o.items()`; Size: 1000; Keys: int; Type: coold; Time: 3.50e-08; Sigma: 2e-09
################################################################################
////////////////////////////////////////////////////////////////////////////////
Name: `iter(o)`; Size: 5; Keys: str; Type: dict; Time: 4.44e-08; Sigma: 2e-09
Name: `iter(o)`; Size: 5; Keys: str; Type: coold; Time: 4.69e-08; Sigma: 1e-09
////////////////////////////////////////////////////////////////////////////////
Name: `iter(o)`; Size: 5; Keys: int; Type: dict; Time: 4.44e-08; Sigma: 2e-09
Name: `iter(o)`; Size: 5; Keys: int; Type: coold; Time: 4.67e-08; Sigma: 2e-09
////////////////////////////////////////////////////////////////////////////////
Name: `iter(o)`; Size: 1000; Keys: str; Type: dict; Time: 4.44e-08; Sigma: 2e-09
Name: `iter(o)`; Size: 1000; Keys: str; Type: coold; Time: 4.70e-08; Sigma: 1e-09
////////////////////////////////////////////////////////////////////////////////
Name: `iter(o)`; Size: 1000; Keys: int; Type: dict; Time: 4.44e-08; Sigma: 2e-09
Name: `iter(o)`; Size: 1000; Keys: int; Type: coold; Time: 4.70e-08; Sigma: 1e-09
################################################################################
////////////////////////////////////////////////////////////////////////////////
Name: `repr(o)`; Size: 5; Keys: str; Type: dict; Time: 1.83e-06; Sigma: 4e-08
Name: `repr(o)`; Size: 5; Keys: str; Type: coold; Time: 2.14e-06; Sigma: 8e-08
////////////////////////////////////////////////////////////////////////////////
Name: `repr(o)`; Size: 5; Keys: int; Type: dict; Time: 7.60e-07; Sigma: 7e-09
Name: `repr(o)`; Size: 5; Keys: int; Type: coold; Time: 9.24e-07; Sigma: 1e-08
////////////////////////////////////////////////////////////////////////////////
Name: `repr(o)`; Size: 1000; Keys: str; Type: dict; Time: 2.71e-04; Sigma: 5e-06
Name: `repr(o)`; Size: 1000; Keys: str; Type: coold; Time: 2.90e-04; Sigma: 2e-05
////////////////////////////////////////////////////////////////////////////////
Name: `repr(o)`; Size: 1000; Keys: int; Type: dict; Time: 1.22e-04; Sigma: 1e-06
Name: `repr(o)`; Size: 1000; Keys: int; Type: coold; Time: 1.23e-04; Sigma: 5e-06
################################################################################
////////////////////////////////////////////////////////////////////////////////
Name: `str(o)`; Size: 5; Keys: str; Type: dict; Time: 1.86e-06; Sigma: 5e-08
Name: `str(o)`; Size: 5; Keys: str; Type: coold; Time: 2.17e-06; Sigma: 7e-08
////////////////////////////////////////////////////////////////////////////////
Name: `str(o)`; Size: 5; Keys: int; Type: dict; Time: 7.93e-07; Sigma: 5e-09
Name: `str(o)`; Size: 5; Keys: int; Type: coold; Time: 9.51e-07; Sigma: 2e-08
////////////////////////////////////////////////////////////////////////////////
Name: `str(o)`; Size: 1000; Keys: str; Type: dict; Time: 2.73e-04; Sigma: 5e-06
Name: `str(o)`; Size: 1000; Keys: str; Type: coold; Time: 2.88e-04; Sigma: 3e-05
////////////////////////////////////////////////////////////////////////////////
Name: `str(o)`; Size: 1000; Keys: int; Type: dict; Time: 1.22e-04; Sigma: 1e-06
Name: `str(o)`; Size: 1000; Keys: int; Type: coold; Time: 1.23e-04; Sigma: 5e-06
################################################################################
////////////////////////////////////////////////////////////////////////////////
Name: `set`; Size: 5; Keys: str; Type: dict; Time: 3.50e-08; Sigma: 2e-09
Name: `set`; Size: 5; Keys: str; Type: coold; Time: 1.26e-07; Sigma: 8e-10
////////////////////////////////////////////////////////////////////////////////
Name: `set`; Size: 5; Keys: int; Type: dict; Time: 3.61e-08; Sigma: 2e-09
Name: `set`; Size: 5; Keys: int; Type: coold; Time: 1.28e-07; Sigma: 8e-10
////////////////////////////////////////////////////////////////////////////////
Name: `set`; Size: 1000; Keys: str; Type: dict; Time: 3.53e-08; Sigma: 2e-09
Name: `set`; Size: 1000; Keys: str; Type: coold; Time: 6.20e-06; Sigma: 5e-07
////////////////////////////////////////////////////////////////////////////////
Name: `set`; Size: 1000; Keys: int; Type: dict; Time: 3.70e-08; Sigma: 2e-09
Name: `set`; Size: 1000; Keys: int; Type: coold; Time: 3.61e-06; Sigma: 2e-07
################################################################################
[1] Benchmarks done under Linux 64 bit, Python 3.10, using the C Extension.