python list | tuple | set | dictionery
Lists
Mylist= [1,2,3]
Len(mylist)
Mylist[0]
Nested list
Mylist=[1,2,[3,4]]
Len(mylist)
Len(mylist[2])
Mylist can be heterogeneous
Mylist.append(4)
Mylist.reverse()
Mylist.pop()
Mylist.insert(2, “aashishmittal”)
Del mylist[2]
Tuple
# used for sequence unpacking
Data=tuple(["5.5","80","aashish"])
If prints data u can check square brackets convert into round brackets it's sign of tuple
Now try
Height, weight,name= Data
Sets
Unordered myBiocollection
SetA=set([1,2,3,3,2])
SetB=set([3,4,5])
SetA|setB. Union
SetA&setB. Intersection
SetA-setB. Difference
Dictionaries
#unordered value pair
MyBio={'name':'aashish', 'hobby':'hacking'}
myBio
print MyBio.has_key("age") #. Return true false
print MyBio.keys()
print MyBio.values()
print MyBio.items()# return tuples
print MyBio.get("hobby")
MyBio["Location"]= "india"
print MyBio.has_key("Location")
del MyBio['Location']
print MyBio.has_key("Location")
MyBio.clear()del
print MyBio.keys()
print MyBio.values()
#dir()# to explore more
print dir(MyBio)
Help(mybio._ key)
Help(mybio.update)
Mylist= [1,2,3]
Len(mylist)
Mylist[0]
Nested list
Mylist=[1,2,[3,4]]
Len(mylist)
Len(mylist[2])
Mylist can be heterogeneous
Mylist.append(4)
Mylist.reverse()
Mylist.pop()
Mylist.insert(2, “aashishmittal”)
Del mylist[2]
Tuple
# used for sequence unpacking
Data=tuple(["5.5","80","aashish"])
If prints data u can check square brackets convert into round brackets it's sign of tuple
Now try
Height, weight,name= Data
Sets
Unordered myBiocollection
SetA=set([1,2,3,3,2])
SetB=set([3,4,5])
SetA|setB. Union
SetA&setB. Intersection
SetA-setB. Difference
Dictionaries
#unordered value pair
MyBio={'name':'aashish', 'hobby':'hacking'}
myBio
print MyBio.has_key("age") #. Return true false
print MyBio.keys()
print MyBio.values()
print MyBio.items()# return tuples
print MyBio.get("hobby")
MyBio["Location"]= "india"
print MyBio.has_key("Location")
del MyBio['Location']
print MyBio.has_key("Location")
MyBio.clear()del
print MyBio.keys()
print MyBio.values()
#dir()# to explore more
print dir(MyBio)
Help(mybio._ key)
Help(mybio.update)
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