Answer:
Two hyphen-minus characters (- -)
Explanation:
Using two hyphen-minus characters only, tend to recommend that the rest of the data are arguments and should not be treated as alternatives.
Hence, in this situation, the two characters a user will use to tell the command that a user is complete giving options and that the rest of the data on the command line is arguments is known as "two hyphen-minus characters (- -)"
The sample recursive Python Function is given below. See the definition of a Recursive Python Function.
<h3>
What is a R
ecursive Python Function?</h3>
A recursive function is one that defines itself in terms of itself using self-referential phrases.
This signifies that the function will keep calling itself and repeating its action until some condition is fulfilled and a result is returned.
Sample Recursive Python Function is:
def remove_all0(x,s):
while s!=[]:
if x == s[0]:
ss = [s[1]] + remove_all0(x,s[2:])
return ss
else:
s1 = [s[0]] + remove_all0(x, s[1:])
return s1
if s==[]:
return s
print(remove_all0(3,[4,3,5,6,3,2,1]))
Learn more about Recursive Python Functions at;
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Answer:
Explanation:
The database schema can have following tables:
1. airport_table(apcode, apcity, apcountry)
2. airline_table(aid, aname, acountry)
3. flight_table(fid, aid, arrtime, depttime)
4. passenger_table(pid, pname, pcity, pcountry)
5 booking_table(bid, bdate, pid)
See attachment for the diagram
The built-in function you use in python to prompt a user for data input is the input function.
<h3>What is an input function?</h3>
An input function is a function used to prompt a user for data input.
The data input may be a string, integer, float, and many more.
Let's use an example of an input function in python.
x = input("what is your name: ")
y = int(input("How old are you: "))
Hence, the first input will prompt the user for the name and the second input will ask the user for his age. It can only accept integers.
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