How to assign the output of the print function (or any function) to a variable?
To give an example:
import eyeD3
tag = eyeD3.Tag()
tag.link("/some/file.mp3")
print tag.getArtist()
How do I assign the output of print tag.getArtist to a variable?
The print statement in Python converts its arguments to strings, and outputs those strings to stdout. To save the string to a variable instead, only convert it to a string:
a = str(tag.getArtist())
u'Elys\xe9e'. The print statement would display Elysée but str() will throw a UnicodeEncodeError.
sys.stdout.encoding when printing them. So you will need to use u'Elys\xe9e'.encode(sys.stdout.encoding) to get the equivalent of what print is doing. In Python 3 you should rarely see this issue, since str in Python 3 is Unicode string type, so str(u'Elys\xe9e') will leave the string unchanged.
To answer the question more generaly how to redirect standard output to a variable ?
do the following :
from io import StringIO
import sys
result = StringIO()
sys.stdout = result
result_string = result.getvalue()
If you need to do that only in some function do the following :
old_stdout = sys.stdout
# your function containing the previous lines
my_function()
sys.stdout = old_stdout
You can use parameter file to redirect output of print function
from io import StringIO
s = StringIO()
print(42, file=s)
result = s.getvalue()
probably you need one of str,repr or unicode functions
somevar = str(tag.getArtist())
depending which python shell are you using
somevar = tag.getArtist()
str.
This is a standalone example showing how to save the output of a user-written function in Python 3:
from io import StringIO
import sys
def print_audio_tagging_result(value):
print(f"value = {value}")
tag_list = []
for i in range(0,1):
save_stdout = sys.stdout
result = StringIO()
sys.stdout = result
print_audio_tagging_result(i)
sys.stdout = save_stdout
tag_list.append(result.getvalue())
print(tag_list)
Output
['value = 0\n']
You can do this by storing and displaying the object at the same time, look at this example:
with open(f"spaces/{space.meeting_code}.txt", "w") as f:
print(space, file=f)
