This is my script:
fruit = "apple"
phrase = "I like eating " + fruit + "s."
def say_fruit(fruit):
print phrase
say_fruit('orange')
I'm trying to get say_fruit to use the string given inside the phrase variable, which actually uses the variable already assigned before to it (apple). How can I achieve this?
In your code, phrase is bound to a string when the module loads and is never changed. You need to be dynamic, like this:
def phrase(fruit):
return "I like eating " + fruit + "s."
def say_fruit(fruit):
print phrase(fruit)
Globals are just a bad idea that will haunt you in the future. Resist the temptation to use them.
<function phrase at 0x0000000001DA8518>. What's this?
So what you want is this, right?
>>> say_fruit('orange')
I like eating oranges.
>>> say_fruit('apples')
I like eating apples.
If so, move the definition of phrase into the function. The end result should be something like:
def say_fruit(fruit):
phrase = "I like eating " + fruit + "s."
print phrase
say_fruit('orange')
When you run this line of code
phrase = "I like eating " + fruit + "s."
Python automatically substitutes 'apple' for fruit and phrase becomes " I like eating apples.".
I prefer using .format() to do this, as it preserves readability:
fruit = "apple"
phrase = "I like eating {fruit}s."
def say_fruit(fruit):
print phrase.format(fruit=fruit)
say_fruit('orange')
.format() substitutes {var} with the contents of var when called.
