How can I print variable and string on same line in Python?

Question:

I am using python to work out how many children would be born in 5 years if a child was born every 7 seconds. The problem is on my last line. How do I get a variable to work when I’m printing text either side of it?

Here is my code:

currentPop = 312032486
oneYear = 365
hours = 24
minutes = 60
seconds = 60

# seconds in a single day
secondsInDay = hours * minutes * seconds

# seconds in a year
secondsInYear = secondsInDay * oneYear

fiveYears = secondsInYear * 5

#Seconds in 5 years
print fiveYears

# fiveYears in seconds, divided by 7 seconds
births = fiveYears // 7

print "If there was a birth every 7 seconds, there would be: " births "births"
Asked By: Bob Uni

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Answers:

Use , to separate strings and variables while printing:

print("If there was a birth every 7 seconds, there would be: ", births, "births")

, in print function separates the items by a single space:

>>> print("foo", "bar", "spam")
foo bar spam

or better use string formatting:

print("If there was a birth every 7 seconds, there would be: {} births".format(births))

String formatting is much more powerful and allows you to do some other things as well, like padding, fill, alignment, width, set precision, etc.

>>> print("{:d} {:03d} {:>20f}".format(1, 2, 1.1))
1 002             1.100000
  ^^^
  0's padded to 2

Demo:

>>> births = 4
>>> print("If there was a birth every 7 seconds, there would be: ", births, "births")
If there was a birth every 7 seconds, there would be:  4 births

# formatting
>>> print("If there was a birth every 7 seconds, there would be: {} births".format(births))
If there was a birth every 7 seconds, there would be: 4 births
Answered By: Ashwini Chaudhary

You can use string formatting to do this:

print "If there was a birth every 7 seconds, there would be: %d births" % births

or you can give print multiple arguments, and it will automatically separate them by a space:

print "If there was a birth every 7 seconds, there would be:", births, "births"
Answered By: Amber

You can either use a formatstring:

print "There are %d births" % (births,)

or in this simple case:

print "There are ", births, "births"
Answered By: enpenax

Two more

The First one

>>> births = str(5)
>>> print("there are " + births + " births.")
there are 5 births.

When adding strings, they concatenate.

The Second One

Also the format (Python 2.6 and newer) method of strings is probably the standard way:

>>> births = str(5)
>>>
>>> print("there are {} births.".format(births))
there are 5 births.

This format method can be used with lists as well

>>> format_list = ['five', 'three']
>>> # * unpacks the list:
>>> print("there are {} births and {} deaths".format(*format_list))  
there are five births and three deaths

or dictionaries

>>> format_dictionary = {'births': 'five', 'deaths': 'three'}
>>> # ** unpacks the dictionary
>>> print("there are {births} births, and {deaths} deaths".format(**format_dictionary))
there are five births, and three deaths

Edit:

Its 2022 and python3 has f strings now.

>>> x = 15
>>> f"there are {x} births"
'there are 15 births'
Answered By: TehTris

I copied and pasted your script into a .py file. I ran it as-is with Python 2.7.10 and received the same syntax error. I also tried the script in Python 3.5 and received the following output:

File "print_strings_on_same_line.py", line 16
print fiveYears
              ^
SyntaxError: Missing parentheses in call to 'print'

Then, I modified the last line where it prints the number of births as follows:

currentPop = 312032486
oneYear = 365
hours = 24
minutes = 60
seconds = 60

# seconds in a single day
secondsInDay = hours * minutes * seconds

# seconds in a year
secondsInYear = secondsInDay * oneYear

fiveYears = secondsInYear * 5

#Seconds in 5 years
print fiveYears

# fiveYears in seconds, divided by 7 seconds
births = fiveYears // 7

print "If there was a birth every 7 seconds, there would be: " + str(births) + " births"

The output was (Python 2.7.10):

157680000
If there was a birth every 7 seconds, there would be: 22525714 births

I hope this helps.

Answered By: Debug255

On a current python version you have to use parenthesis, like so :

print ("If there was a birth every 7 seconds", X)
Answered By: Dror

If you want to work with python 3, it’s very simple:

print("If there was a birth every 7 second, there would be %d births." % (births))

You would first make a variable: for example: D = 1. Then Do This but replace the string with whatever you want:

D = 1
print("Here is a number!:",D)

Python is a very versatile language. You may print variables by different methods. I have listed below five methods. You may use them according to your convenience.

Example:

a = 1
b = 'ball'

Method 1:

print('I have %d %s' % (a, b))

Method 2:

print('I have', a, b)

Method 3:

print('I have {} {}'.format(a, b))

Method 4:

print('I have ' + str(a) + ' ' + b)

Method 5:

print(f'I have {a} {b}')

The output would be:

I have 1 ball
Answered By: Gagan Agrawal

use String formatting

print("If there was a birth every 7 seconds, there would be: {} births".format(births))
 # Will replace "{}" with births

if you doing a toy project use:

print('If there was a birth every 7 seconds, there would be:' births'births) 

or

print('If there was a birth every 7 seconds, there would be: %d births' %(births))
# Will replace %d with births
Answered By: Siddharth Dash

As of python 3.6 you can use Literal String Interpolation.

births = 5.25487
>>> print(f'If there was a birth every 7 seconds, there would be: {births:.2f} births')
If there was a birth every 7 seconds, there would be: 5.25 births
Answered By: PabTorre

Slightly different: Using Python 3 and print several variables in the same line:

print("~~Create new DB:",argv[5],"; with user:",argv[3],"; and Password:",argv[4]," ~~")
Answered By: Qohelet

You can either use the f-string or .format() methods

Using f-string

print(f'If there was a birth every 7 seconds, there would be: {births} births')

Using .format()

print("If there was a birth every 7 seconds, there would be: {births} births".format(births=births))
Answered By: ms8277

If you are using python 3.6 or latest,
f-string is the best and easy one

print(f"{your_varaible_name}")
Answered By: Mathanraj-Sharma

PYTHON 3

Better to use the format option

user_name=input("Enter your name : )

points = 10

print ("Hello, {} your point is {} : ".format(user_name,points)

or declare the input as string and use

user_name=str(input("Enter your name : ))

points = 10

print("Hello, "+user_name+" your point is " +str(points))
Answered By: Bromount

Just use , (comma) in between.

See this code for better understanding:

# Weight converter pounds to kg

weight_lbs = input("Enter your weight in pounds: ")

weight_kg = 0.45 * int(weight_lbs)

print("You are ", weight_kg, " kg")
Answered By: Faisal Ahmed

If you use a comma inbetween the strings and the variable, like this:

print "If there was a birth every 7 seconds, there would be: ", births, "births"
Answered By: user12927732

Starting from Python-3.8, you can use f-strings with variable name printing!

age = 19
vitality = 17
charisma = 16
name = "Alice"
print(f"{name=}, {age=}, {vitality=}, {charisma=}")
# name='Alice', age=19, vitality=17, charisma=16
  • Naming mistakes are almost impossible here! If you add, rename or remove a variable, your debug print will stay correct
  • The debug line is very concise
  • Don’t worry about alignment. Is the 4-th argument charisma or vitality? Well, you don’t care, it’s correct regardless.
Answered By: VasiliNovikov
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