This is just a snippet of my code:
print("Total score for %s is %s ", name, score)
But I want it to print out:
"Total score for (name) is (score)"
where name
is a variable in a list and score
is an integer. This is Python 3.3 if that helps at all.
This question is related to
python
printing
python-3.x
arguments
Use: .format()
:
print("Total score for {0} is {1}".format(name, score))
Or:
// Recommended, more readable code
print("Total score for {n} is {s}".format(n=name, s=score))
Or:
print("Total score for" + name + " is " + score)
Or:
`print("Total score for %s is %d" % (name, score))`
In Python 3.6, f-string
is much cleaner.
In earlier version:
print("Total score for %s is %s. " % (name, score))
In Python 3.6:
print(f'Total score for {name} is {score}.')
will do.
It is more efficient and elegant.
There are many ways to print that.
Let's have a look with another example.
a = 10
b = 20
c = a + b
#Normal string concatenation
print("sum of", a , "and" , b , "is" , c)
#convert variable into str
print("sum of " + str(a) + " and " + str(b) + " is " + str(c))
# if you want to print in tuple way
print("Sum of %s and %s is %s: " %(a,b,c))
#New style string formatting
print("sum of {} and {} is {}".format(a,b,c))
#in case you want to use repr()
print("sum of " + repr(a) + " and " + repr(b) + " is " + repr(c))
EDIT :
#New f-string formatting from Python 3.6:
print(f'Sum of {a} and {b} is {c}')
Keeping it simple, I personally like string concatenation:
print("Total score for " + name + " is " + score)
It works with both Python 2.7 an 3.X.
NOTE: If score is an int, then, you should convert it to str:
print("Total score for " + name + " is " + str(score))
Just try:
print("Total score for", name, "is", score)
This was probably a casting issue
. Casting syntax
happens when you try to combine two different types of variables
. Since we cannot convert a string
to an integer
or float
always, we have to convert our integers
into a string
. This is how you do it.: str(x)
. To convert to a integer, it's: int(x)
, and a float is float(x)
. Our code will be:
print('Total score for ' + str(name) + ' is ' + str(score))
Also! Run this snippet
to see a table of how to convert different types of variables
!
<table style="border-collapse: collapse; width: 100%;background-color:maroon; color: #00b2b2;">
<tbody>
<tr>
<td style="width: 50%;font-family: serif; padding: 3px;">Booleans</td>
<td style="width: 50%;font-family: serif; padding: 3px;"><code>bool()</code></td>
</tr>
<tr>
<td style="width: 50%;font-family: serif;padding: 3px">Dictionaries</td>
<td style="width: 50%;font-family: serif;padding: 3px"><code>dict()</code></td>
</tr>
<tr>
<td style="width: 50%;font-family: serif;padding: 3px">Floats</td>
<td style="width: 50%;font-family: serif;padding: 3px"><code>float()</code></td>
</tr>
<tr>
<td style="width: 50%;font-family: serif;padding:3px">Integers</td>
<td style="width: 50%;font-family: serif;padding:3px;"><code>int()</code></td>
</tr>
<tr>
<td style="width: 50%;font-family: serif;padding: 3px">Lists</td>
<td style="width: 50%font-family: serif;padding: 3px;"><code>list()</code></td>
</tr>
</tbody>
</table>
_x000D_
If score
is a number, then
print("Total score for %s is %d" % (name, score))
If score is a string, then
print("Total score for %s is %s" % (name, score))
If score is a number, then it's %d
, if it's a string, then it's %s
, if score is a float, then it's %f
There are many ways to do this. To fix your current code using %
-formatting, you need to pass in a tuple:
Pass it as a tuple:
print("Total score for %s is %s" % (name, score))
A tuple with a single element looks like ('this',)
.
Here are some other common ways of doing it:
Pass it as a dictionary:
print("Total score for %(n)s is %(s)s" % {'n': name, 's': score})
There's also new-style string formatting, which might be a little easier to read:
Use new-style string formatting:
print("Total score for {} is {}".format(name, score))
Use new-style string formatting with numbers (useful for reordering or printing the same one multiple times):
print("Total score for {0} is {1}".format(name, score))
Use new-style string formatting with explicit names:
print("Total score for {n} is {s}".format(n=name, s=score))
Concatenate strings:
print("Total score for " + str(name) + " is " + str(score))
The clearest two, in my opinion:
Just pass the values as parameters:
print("Total score for", name, "is", score)
If you don't want spaces to be inserted automatically by print
in the above example, change the sep
parameter:
print("Total score for ", name, " is ", score, sep='')
If you're using Python 2, won't be able to use the last two because print
isn't a function in Python 2. You can, however, import this behavior from __future__
:
from __future__ import print_function
Use the new f
-string formatting in Python 3.6:
print(f'Total score for {name} is {score}')
Use f-string
:
print(f'Total score for {name} is {score}')
Or
Use .format
:
print("Total score for {} is {}".format(name, score))
This is what I do:
print("Total score for " + name + " is " + score)
Remember to put a space after for
and before and after is
.
Just follow this
idiot_type = "the biggest idiot"
year = 22
print("I have been {} for {} years ".format(idiot_type, years))
OR
idiot_type = "the biggest idiot"
year = 22
print("I have been %s for %s years."% (idiot_type, year))
And forget all others, else the brain won't be able to map all the formats.
print("Total score for %s is %s " % (name, score))
%s
can be replace by %d
or %f
Source: Stackoverflow.com