>>> dic = dict((("A",[1,2,3]),("F",56)))
>>> dic
{'A': [1, 2, 3], 'F': 56}
>>> dic = {"R":"RRRR","T":"TTTT"}
>>> dic
{'R': 'RRRR', 'T': 'TTTT'}
>>> dic["R"]
'RRRR'
>>>
>>> dic = dict((("A",[1,2,3]),("F",56)))
>>> dic["A"]
[1, 2, 3]
>>> dic["A"][0]
1
>>> dic["E"] = "RYFHF"
>>> dic
{'A': [1, 2, 3], 'F': 56, 'E': 'RYFHF'}
>>> dict1 = {}
>>> dict1.formkeys((1,2,3),"number")
Traceback (most recent call last):
File "<pyshell#13>", line 1, in <module>
dict1.formkeys((1,2,3),"number")
AttributeError: 'dict' object has no attribute 'formkeys'
>>> dict1 = dict1.formkeys((1,2,3),"number")
Traceback (most recent call last):
File "<pyshell#14>", line 1, in <module>
dict1 = dict1.formkeys((1,2,3),"number")
AttributeError: 'dict' object has no attribute 'formkeys'
>>> dict1 = {"A":"a","B":"b"}
>>> d = dict1.keys
>>> d
<built-in method keys of dict object at 0x1057d1cf0>
>>> for i in d :
print(i)
Traceback (most recent call last):
File "<pyshell#20>", line 1, in <module>
for i in d :
TypeError: 'builtin_function_or_method' object is not iterable
>>> dict1.get("A")
'a'
>>> dict1.set("C","c")
Traceback (most recent call last):
File "<pyshell#22>", line 1, in <module>
dict1.set("C","c")
AttributeError: 'dict' object has no attribute 'set'
>>> dict1.get("C","c")
'c'
>>> dict1
{'A': 'a', 'B': 'b'}
>>> "A" in dict1
True
>>> dict1
{'A': 'a', 'B': 'b'}
>>> dict1.clear()
>>> dict1
{}
>>> a = {"x":"XXXX","e":"EEEEEE"}
>>> b= a
>>> a = {}
>>> a
{}
>>> b
{'x': 'XXXX', 'e': 'EEEEEE'}
>>> b["t"] = "TTTT"
>>> b
{'x': 'XXXX', 'e': 'EEEEEE', 't': 'TTTT'}
>>> for i in b.keys
SyntaxError: invalid syntax
>>> or i in b.keys:
SyntaxError: invalid syntax
>>> for i in b.keys:
print(i)
Traceback (most recent call last):
File "<pyshell#41>", line 1, in <module>
for i in b.keys:
TypeError: 'builtin_function_or_method' object is not iterable
>>> for i in b.items():
print(i)
('x', 'XXXX')
('e', 'EEEEEE')
('t', 'TTTT')
>>> for i in b.keys():
print(i)
x
e
t
>>> for i in b.values():
print(i)
XXXX
EEEEEE
TTTT
>>> for i in b.items():
if i["x"] == "XXXX":
print(i)
Traceback (most recent call last):
File "<pyshell#54>", line 2, in <module>
if i["x"] == "XXXX":
TypeError: tuple indices must be integers or slices, not str
>>> for i in b.items():
if i["x"] == "XXXX":
print("i")
Traceback (most recent call last):
File "<pyshell#56>", line 2, in <module>
if i["x"] == "XXXX":
TypeError: tuple indices must be integers or slices, not str
>>> b
{'x': 'XXXX', 'e': 'EEEEEE', 't': 'TTTT'}
>>> b.get("x")
'XXXX'
>>> b.get("d","DDDD")
'DDDD'
>>> b
{'x': 'XXXX', 'e': 'EEEEEE', 't': 'TTTT'}
>>> b.set("d","DDDD")
Traceback (most recent call last):
File "<pyshell#61>", line 1, in <module>
b.set("d","DDDD")
AttributeError: 'dict' object has no attribute 'set'
>>> help(b)
Help on dict object:
class dict(object)
| dict() -> new empty dictionary
| dict(mapping) -> new dictionary initialized from a mapping object's
| (key, value) pairs
| dict(iterable) -> new dictionary initialized as if via:
| d = {}
| for k, v in iterable:
| d[k] = v
| dict(**kwargs) -> new dictionary initialized with the name=value pairs
| in the keyword argument list. For example: dict(one=1, two=2)
|
| Methods defined here:
|
| __contains__(self, key, /)
| True if D has a key k, else False.
|
| __delitem__(self, key, /)
| Delete self[key].
|
| __eq__(self, value, /)
| Return self==value.
|
| __ge__(self, value, /)
| Return self>=value.
|
| __getattribute__(self, name, /)
| Return getattr(self, name).
|
| __getitem__(...)
| x.__getitem__(y) <==> x[y]
|
| __gt__(self, value, /)
| Return self>value.
|
| __init__(self, /, *args, **kwargs)
| Initialize self. See help(type(self)) for accurate signature.
|
| __iter__(self, /)
| Implement iter(self).
|
| __le__(self, value, /)
| Return self<=value.
|
| __len__(self, /)
| Return len(self).
|
| __lt__(self, value, /)
| Return self<value.
|
| __ne__(self, value, /)
| Return self!=value.
|
| __new__(*args, **kwargs) from builtins.type
| Create and return a new object. See help(type) for accurate signature.
|
| __repr__(self, /)
| Return repr(self).
|
| __setitem__(self, key, value, /)
| Set self[key] to value.
|
| __sizeof__(...)
| D.__sizeof__() -> size of D in memory, in bytes
|
| clear(...)
| D.clear() -> None. Remove all items from D.
|
| copy(...)
| D.copy() -> a shallow copy of D
|
| fromkeys(iterable, value=None, /) from builtins.type
| Returns a new dict with keys from iterable and values equal to value.
|
| get(...)
| D.get(k[,d]) -> D[k] if k in D, else d. d defaults to None.
|
| items(...)
| D.items() -> a set-like object providing a view on D's items
|
| keys(...)
| D.keys() -> a set-like object providing a view on D's keys
|
| pop(...)
| D.pop(k[,d]) -> v, remove specified key and return the corresponding value.
| If key is not found, d is returned if given, otherwise KeyError is raised
|
| popitem(...)
| D.popitem() -> (k, v), remove and return some (key, value) pair as a
| 2-tuple; but raise KeyError if D is empty.
|
| setdefault(...)
| D.setdefault(k[,d]) -> D.get(k,d), also set D[k]=d if k not in D
|
| update(...)
| D.update([E, ]**F) -> None. Update D from dict/iterable E and F.
| If E is present and has a .keys() method, then does: for k in E: D[k] = E[k]
| If E is present and lacks a .keys() method, then does: for k, v in E: D[k] = v
| In either case, this is followed by: for k in F: D[k] = F[k]
|
| values(...)
| D.values() -> an object providing a view on D's values
|
| ----------------------------------------------------------------------
| Data and other attributes defined here:
|
| __hash__ = None
>>> b
{'x': 'XXXX', 'e': 'EEEEEE', 't': 'TTTT'}
>>> setitem(b,"d","DDD")
Traceback (most recent call last):
File "<pyshell#64>", line 1, in <module>
setitem(b,"d","DDD")
NameError: name 'setitem' is not defined
>>> for i in b.keys():
if i in b:
print(i)
break
x
>>> for i in b.keys():
if i in b:
print(i)
x
e
t
>>> b["y"] = "RRRRR"
>>> b
{'x': 'XXXX', 'e': 'EEEEEE', 't': 'TTTT', 'y': 'RRRRR'}
>>> a = b.copy()
>>> a
{'x': 'XXXX', 'e': 'EEEEEE', 't': 'TTTT', 'y': 'RRRRR'}
>>> b.clear()
>>> b
{}
>>> a
{'x': 'XXXX', 'e': 'EEEEEE', 't': 'TTTT', 'y': 'RRRRR'}
>>> id(a)
4387105744
>>> id(b)
4386400656
>>> a.popitem()
('y', 'RRRRR')
>>> a
{'x': 'XXXX', 'e': 'EEEEEE', 't': 'TTTT'}
>>> a.setdifault("b","BBBB")
Traceback (most recent call last):
File "<pyshell#83>", line 1, in <module>
a.setdifault("b","BBBB")
AttributeError: 'dict' object has no attribute 'setdifault'
>>> a
{'x': 'XXXX', 'e': 'EEEEEE', 't': 'TTTT'}
>>> a.setdefault("v","VVVV")
'VVVV'
>>> a
{'x': 'XXXX', 'e': 'EEEEEE', 't': 'TTTT', 'v': 'VVVV'}
>>> a.get("e")
'EEEEEE'
>>> a
{'x': 'XXXX', 'e': 'EEEEEE', 't': 'TTTT', 'v': 'VVVV'}
>>> a.setdefault("n","NNNNN")
'NNNNN'
>>> a
{'x': 'XXXX', 'e': 'EEEEEE', 't': 'TTTT', 'v': 'VVVV', 'n': 'NNNNN'}
>>> a.updata("g","GGGG")
Traceback (most recent call last):
File "<pyshell#91>", line 1, in <module>
a.updata("g","GGGG")
AttributeError: 'dict' object has no attribute 'updata'
>>> a
{'x': 'XXXX', 'e': 'EEEEEE', 't': 'TTTT', 'v': 'VVVV', 'n': 'NNNNN'}
>>> a.update("e","update")
Traceback (most recent call last):
File "<pyshell#93>", line 1, in <module>
a.update("e","update")
TypeError: update expected at most 1 arguments, got 2
>>> a
{'x': 'XXXX', 'e': 'EEEEEE', 't': 'TTTT', 'v': 'VVVV', 'n': 'NNNNN'}
a
>>> a.update({"e","update"})
Traceback (most recent call last):
File "<pyshell#95>", line 1, in <module>
a.update({"e","update"})
ValueError: dictionary update sequence element #0 has length 1; 2 is required
>>> a.update({"e":"update"})
>>> a
{'x': 'XXXX', 'e': 'update', 't': 'TTTT', 'v': 'VVVV', 'n': 'NNNNN'}
>>> a.update("e":"update2")
SyntaxError: invalid syntax
>>> a.update({"e":"update2"})
>>> a
{'x': 'XXXX', 'e': 'update2', 't': 'TTTT', 'v': 'VVVV', 'n': 'NNNNN'}
>>> a.setdefault("e","rrrr")
'update2'
>>> a
{'x': 'XXXX', 'e': 'update2', 't': 'TTTT', 'v': 'VVVV', 'n': 'NNNNN'}
>>> a.setdefault("e1","XXXX")
'XXXX'
>>> a
{'x': 'XXXX', 'e': 'update2', 't': 'TTTT', 'v': 'VVVV', 'n': 'NNNNN', 'e1': 'XXXX'}
>>>
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