diff options
| -rw-r--r-- | manipulating-strings/script.rst | 39 |
1 files changed, 35 insertions, 4 deletions
diff --git a/manipulating-strings/script.rst b/manipulating-strings/script.rst index 4b28b55..1ba16d1 100644 --- a/manipulating-strings/script.rst +++ b/manipulating-strings/script.rst @@ -7,13 +7,14 @@ .. #. Reverse strings .. #. Replace characters in strings. .. #. Convert to strings to upper or lower case +.. #. joining a list of strings .. Prerequisites .. ------------- .. 1. getting started with strings .. #. getting started with lists -.. #. +.. #. basic datatypes .. Author : Puneeth Internal Reviewer : @@ -31,9 +32,9 @@ Hello Friends. Welcome to this tutorial on manipulating strings. In this tutorial we shall learn to manipulate strings, specifically slicing and reversing them, or replacing characters, converting from -upper to lower case and vice-versa +upper to lower case and vice-versa and joining a list of strings. -#[punch: reversed returns an iterator. should we still teach it?] +.. #[punch: reversed returns an iterator. should we still teach it?] We have an ``ipython`` shell open, in which we are going to work, through out this session. @@ -199,13 +200,43 @@ Please, pause the video here. Do the exercise and then continue. email = email.replace("[dot]", ".") print email +Now, let's look at another interesting problem where we have a list of +e-mail addresses and we wish to obtain one long string of e-mail +addresses separated by commas or semi-colons. + +:: + + email_list = ["info@fossee.in", "enquiries@fossee.in", "help@fossee.in"] + + +Now, if we wish to obtain one long string, separating each of the +email id by a comma, we use the join operator on ``,``. + +:: + + email_str = ", ".join(email_list) + print email_str + +Notice that the email ids are joined by a comma followed by a space. + +Following is an exercise that you must do. + +%%3%% From the email_str that we generated, change the separator to be +a semicolon instead of a comma. + +Please, pause the video here. Do the exercise and then continue. + +:: + + email_str = email_str.replace(",", ";") That brings us to the end of the tutorial. {{{ show summary slide }}} In this tutorial, we have learnt how to get substrings, reverse -strings and a few useful methods, namely upper, lower and replace. +strings and a few useful methods, namely upper, lower, replace and +join. {{{ Show the "sponsored by FOSSEE" slide }}} |