#+LaTeX_CLASS: beamer #+LaTeX_CLASS_OPTIONS: [presentation] #+BEAMER_FRAME_LEVEL: 1 #+BEAMER_HEADER_EXTRA: \usetheme{Warsaw}\usecolortheme{default}\useoutertheme{infolines}\setbeamercovered{transparent} #+COLUMNS: %45ITEM %10BEAMER_env(Env) %10BEAMER_envargs(Env Args) %4BEAMER_col(Col) %8BEAMER_extra(Extra) #+PROPERTY: BEAMER_col_ALL 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 :ETC #+LaTeX_CLASS: beamer #+LaTeX_CLASS_OPTIONS: [presentation] #+LaTeX_HEADER: \usepackage[english]{babel} \usepackage{ae,aecompl} #+LaTeX_HEADER: \usepackage{mathpazo,courier,euler} \usepackage[scaled=.95]{helvet} #+LaTeX_HEADER: \usepackage{listings} #+LaTeX_HEADER:\lstset{language=Python, basicstyle=\ttfamily\bfseries, #+LaTeX_HEADER: commentstyle=\color{red}\itshape, stringstyle=\color{darkgreen}, #+LaTeX_HEADER: showstringspaces=false, keywordstyle=\color{blue}\bfseries} #+TITLE: Parsing Data #+AUTHOR: FOSSEE #+EMAIL: #+DATE: #+DESCRIPTION: #+KEYWORDS: #+LANGUAGE: en #+OPTIONS: H:3 num:nil toc:nil \n:nil @:t ::t |:t ^:t -:t f:t *:t <:t #+OPTIONS: TeX:t LaTeX:nil skip:nil d:nil todo:nil pri:nil tags:not-in-toc * Outline - What is meant by parsing data? - String operations required for parsing - Converting between data-types. * Question 1 Split the variable line using a space as argument. Is it same as splitting without an argument ? * Solution 1 We see that when we split on space, multiple whitespaces are not clubbed as one and there is an empty string everytime there are two consecutive spaces. * Question 2 What happens to the white space inside the sentence when it is stripped? * Solution 2 #+begin_src python In []: a_str = " white space " In []: a_str.strip() #+end_src * Question 3 What happens if you do =int("1.25")= * Solution 3 It raises an error since converting a float string into integer directly is not possible. It involves an intermediate step of converting to float. #+begin_src python In []: dcml_str = "1.25" In []: flt = float(dcml_str) In []: flt In []: number = int(flt) In []: number #+end_src * Summary + How to tokenize a string using various delimiters + How to get rid of extra white space around + How to convert from one type to another + How to parse input data and perform computations on it * 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