Error shown in Python - TypeError : unsupported operand type(s) for ** or pow() :'str' and 'int' -


i started python today.. spent hours on codeacademy , learnt quite bit thought i'd make own program square ages of person , sibling. basic starter. pretty useless wanted see can do. keep getting typeerror mentioned in title. here's code :

a=raw_input(''enter age'')  b=raw_input(''sibling's age'')  square=a**2 + b**2 + 2ab if square <160:     print 'really young people'  else:     print 'square of sum >160'

please thanks!!

first , foremost, if you're starting, really should learning python 3, not 2.

the code posted has many issues. here's line-by-line breakdown, corrections in python 3:

a=raw_input(''enter age'')  b=raw_input(''sibling's age'')

you need use either single quotes ' or double quotes ", not 2 single quotes define strings. try:

a = int(input("enter age")) b = int(input("sibling's age"))

there no raw_input() in python 3, it's input(). function returns string, if want math on need call int() turn result integer.

square=a**2 + b**2 + 2ab

as long a , b ints, first 2 parts of expression fine, need remember operations in python explicit, you'll need fix last part so:

square = a**2 + b**2 + 2*a*b

now last part:

if square <160:     print 'really young people'  else:     print 'square of sum >160'

python case-sensitive. since used square above, you'll need use same capitalization down here. likewise, builtin keywords , functions in lowercase (if, else, print(), etc.). finally, in python 3 print function, not statement, you'll need parentheses ( ) around arguments:

if square < 160:     print("really young people") else:     print("square of sum > 160")

so, here's complete python 3 code:

a = int(input("enter age")) b = int(input("sibling's age")) square = a**2 + b**2 + 2*a*b if square < 160:     print("really young people") else:     print("square of sum > 160")

-

Popular posts from this blog

Apache NiFi ExecuteScript: Groovy script to replace Json values via a mapping file -

i working apache nifi 0.5.1 on groovy script replace incoming json values ones contained in mapping file. mapping file looks (it simple .txt): header1;header2;header3 a;some text;a2 i have started following: import groovy.json.jsonbuilder import groovy.json.jsonslurper import java.nio.charset.standardcharsets def flowfile = session.get(); if (flowfile == null) { return; } flowfile = session.write(flowfile, { inputstream, outputstream -> def content = """ { "field1": "a" "field2": "a", "field3": "a" }""" def slurped = new jsonslurper().parsetext(content) def builder = new jsonbuilder(slurped) builder.content.field1 = "a" builder.content.field2 = "some text" builder.content.field3 = "a2" outputstream.write(builder.toprettystring().ge...
Read more

node.js - How do I prevent MongoDB replica set from querying the primary? -

read-operations-only: is there way have mongodb replica set, make mongodb instance on box connected to, mongodb gets queried? i have 3 ec2 instances behind aws load balancer. on each ec2 instance runs mongodb, part of replica set. i have express endpoints on nodejs , connect replica set follows mongodb.mongoclient.connect('mongodb://1.1.1.1,2.2.2.2,3.3.3.3.', function (err, db) { if (err) { complete('{}'); } else { i distribute load of queries evenly across 3 instances of mongodb replica set instead of default having queries routed ec2 instance primary mongodb defined, because destroys point of load balancer (which balance load of queries across 3 instances evenly). my understanding when connecting mongodb replica set, primary instance selected unless primary instance down, , therefore purpose of every secondary instance serve backup. in example people call hot,cold,cold. because there 2...
Read more