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#+TITLE:    Manipulating strings
#+AUTHOR:    FOSSEE
#+EMAIL:     
#+DATE:    

#+DESCRIPTION: 
#+KEYWORDS: 
#+LANGUAGE:  en
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* Outline
  - Slicing strings to get sub-strings
  - Reversing strings
  - Replacing characters in strings. 
  - Converting strings to upper or lower case
  - Joining a list of strings
* Question 1
  Obtain the sub-string excluding the first and last characters from
  the string ~s~.
* Solution 1
  #+begin_src python
    In []:  s[1:-1]
  #+end_src
* Question 2
  Given a list week, week = ~week = ["sun", "mon", "tue", "wed",
  "thu", "fri", "sat"]~. Check if ~s~ is a valid name of a day of the
  week. Change the solution to this problem, to include forms like,
  SAT, SATURDAY, Saturday and Sat.
* Solution 2
  #+begin_src python
    In []:  s in week
    In []:  s.lower()[:3] in week
  #+end_src
* Question 3
  Given ~email~ -- ~info@fossee[dot]in~

  Replace the ~[dot]~ with ~.~ in ~email~
* Solution 3
  #+begin_src python
    email.replace('[dot], '.')
    print email
  #+end_src
* Question 4
  From the ~email_str~ that we generated, change the separator to be a
  semicolon instead of a comma.
* Solution 4
  #+begin_src python
    email_str = email_str.replace(",", ";")
  #+end_src
* Summary
  You should now be able to --
  - Slice strings and get sub-strings out of them
  - Reverse strings
  - Replace characters in strings. 
  - Convert strings to upper or lower case
  - Join a list of strings

* Thank you!
#+begin_latex
  \begin{block}{}
  \begin{center}
  This spoken tutorial has been produced by the
  \textcolor{blue}{FOSSEE} team, which is funded by the 
  \end{center}
  \begin{center}
    \textcolor{blue}{National Mission on Education through \\
      Information \& Communication Technology \\ 
      MHRD, Govt. of India}.
  \end{center}  
  \end{block}
#+end_latex