Basic python string [closed]

Answer 1

have a look at str.split. You can use it to split a string up into a list:

"foo bar baz".split()     #['foo','bar','baz'] (split on any whitespace)
"foo$bar$baz".split('$')  #['foo','bar','baz']

From here, it's just a matter of splitting the string into the appropriate lists, and then iterating over the lists properly to pick out the elements that you need.

Additionally, you could use str.find to get the index of the class name and split your string there using slicing before splitting on $. That would make it easier to get the particular score (without an additional iteration):

s = 'foo$bar$baz'
s_new = s[s.find('bar'):]  #'bar$baz'
baz = s_new.split('$')[1]
print baz

Answer 2

store string in a variable, say:

strs="""Justin$Calculus$90$Java$85$Python88$
Taylor$Calculus$73$Java$95$Python86$
Drew$Calculus$80$Java$75$Python94$
"""

loop over strs.split() using a for loop , i.e for line in strs.split() (using strs.split() will return a list containing all lines, splitted at whitespace)

now for each line use line.rstrip("$").split('$'), it'll return something like this for the first line:

['Justin', 'Calculus', '90', 'Java', '85', 'Python88']

rstrip("$") will remove the rightmost $ from the line

Answer 3

A convenient way to read this would be to use the csv module. It's intended for Comma Separated Values, but you can change the delimiter and use $ instead.

You would need to use delimiter='$' as an argument to your reader.