How to add a variable in method's argument in python?
Below code works perfectly now I want to provide ObjectType(ObjectIdentity(
from pysnmp.hlapi import *
g = getCmd(SnmpEngine(),
CommunityData('myPa$$word'),
UdpTransportTarget(('loadbalancer-staging.com', 161)),
ContextData(),
ObjectType(ObjectIdentity('1.3.6.1.2.1.1.1.0')),
ObjectType(ObjectIdentity('1.3.6.1.2.1.1.6.0')))
for x in next(g)[3]:
print xmibs = ['1.3.6.1.2.1.1.1.0', '1.3.6.1.2.1.1.6.0']ASKER CERTIFIED SOLUTION
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In the python world the star before a list variable or before a list ist often referenced as *args.
two stars before a dict variable are often referenced as kwargs.
You can read following article about it. https://pythontips.com/201
If you have a list (e.g. the variable l) with n elements, then wherever you use a *l in a function call, *l will be used as the next n parameters of that function call.
Example:
You have also the reverse construct, where *args is being used in a function declaration.
This allows to create a function with a variable amount of parameters.
example:
two stars before a dict variable are often referenced as kwargs.
You can read following article about it. https://pythontips.com/201
If you have a list (e.g. the variable l) with n elements, then wherever you use a *l in a function call, *l will be used as the next n parameters of that function call.
Example:
>>> def f(a,b,c,d,e):
... print("a = %s b=%s c=%s d=%s e=%s" % (a,b,c,d,e))
...
>>> f(1,2,3,4,5)
a = 1 b=2 c=3 d=4 e=5
>>> l=['a', 'b', 'c', 'd', 'e']
>>> f(*l)
a = a b=b c=c d=d e=e
>>> l=['a','b']
>>> f(1,2,3,*l)
a = 1 b=2 c=3 d=a e=bYou have also the reverse construct, where *args is being used in a function declaration.
This allows to create a function with a variable amount of parameters.
example:
>>> def f(a,b, *args):
... print("a=%s b=%s other args are %s" % (a,b, args))
...
>>> f(1,2)
a=1 b=2 other args are ()
>>> f(1,2,3)
a=1 b=2 other args are (3,)
>>> f(1,2,3,4)
a=1 b=2 other args are (3, 4)
>>>
ASKER
I am new to python and curios to know what is happening here?
Open in new window
what is the role of * here?