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Easy use of F-Strings with Python.

 2 years ago
source link: https://dev.to/asapsonter/easy-use-of-f-strings-with-python-55ja
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F-Strings

Here, I am going to jump straight to printing out strings with Python. Take a look at this code using place holder format method. 

first_name = 'sam'
last_name = 'sonter'

intro = "My name is {} {}".format (first_name,last_name)
print(intro)

output:  My name is sam sonter
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Python can also allow us to use the F-String to get same output. Check this out.

first_name = 'sam'
last_name = 'sonter'

intro = f"My name is {first_name} {last_name}" 
print(intro)

output:  My name is sam sonter
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I got ride of the format method and introduced the F string. I now put the variables inside the place holders making the block of code easier to understand.

Now, I am going to use a dictionary in the next example.

person = {'name': 'Sam', 'height': 188}
sentence = "My name is {} I am {} cm tall".format(person['name'],person['age'])

print(sentence)
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This example is pretty much the same with the first one except here we are using a dictionary. Now, let's use the F string.

person = {'name': 'Sam', 'height': 188}
sentence = f"My name is {person['name']} I am {person['height']} cm tall"
print(sentence)
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Many people might make syntax errors by using the wrong quotes. If you pay attention you can see i used double " outside my statement and single ' inside the statement to avoid syntax errors.
That is it for this article, thanks for reading and I hope you find this useful.
Sam Sonter


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