diff options
| -rwxr-xr-x | day1/Session-4.tex | 77 |
1 files changed, 27 insertions, 50 deletions
diff --git a/day1/Session-4.tex b/day1/Session-4.tex index 6a8fe95..e9adbf3 100755 --- a/day1/Session-4.tex +++ b/day1/Session-4.tex @@ -137,11 +137,11 @@ \inctime{5} \end{frame} -\begin{frame} {Problem Set 2.1} +\begin{frame} {Problem Set 6.1} \begin{description} -\item[2.1.1] You are given date strings of the form ``29, Jul 2009'', or ``4 January 2008''. In other words a number a string and another number, with a comma sometimes separating the items.Write a function that takes such a string and returns a tuple (yyyy, mm, dd) where all three elements are ints. - \item[2.1.2] Count word frequencies in a file. - \item[2.1.3] Find the most used Python keywords in your Python code (import keyword). +\item[6.1.1] You are given date strings of the form ``29, Jul 2009'', or ``4 January 2008''. In other words a number a string and another number, with a comma sometimes separating the items.Write a function that takes such a string and returns a tuple (yyyy, mm, dd) where all three elements are ints. + \item[6.1.2] Count word frequencies in a file. + \item[6.1.3] Find the most used Python keywords in your Python code (import keyword). \end{description} \inctime{10} @@ -189,7 +189,7 @@ False \begin{frame} - \frametitle{Problem set 2.2} + \frametitle{Problem set 6.2} \begin{description} \item[2.2.1] Given a dictionary of the names of students and their marks, identify how many duplicate marks are there? and what are these? \item[2.2.2] Given a string of the form ``4-7, 9, 12, 15'' find the numbers missing in this list for a given range. @@ -243,8 +243,8 @@ def ask_ok(prompt, complaint='Yes or no!'): print complaint ask_ok(prompt='?') -ask_ok(prompt='?', complaint='[Y/N]') -ask_ok(complaint='[Y/N]', prompt='?') +ask_ok(prompt='?', complaint='[y/n]') +ask_ok(complaint='[y/n]', prompt='?') \end{lstlisting} \inctime{15} \end{frame} @@ -299,6 +299,9 @@ Which is more readable? \frametitle{Errors} \begin{lstlisting} >>> while True print 'Hello world' + \end{lstlisting} +\pause + \begin{lstlisting} File "<stdin>", line 1, in ? while True print 'Hello world' ^ @@ -310,11 +313,22 @@ SyntaxError: invalid syntax \frametitle{Exceptions} \begin{lstlisting} >>> print spam +\end{lstlisting} +\pause +\begin{lstlisting} Traceback (most recent call last): File "<stdin>", line 1, in <module> NameError: name 'spam' is not defined +\end{lstlisting} +\end{frame} +\begin{frame}[fragile] + \frametitle{Exceptions} + \begin{lstlisting} >>> 1 / 0 +\end{lstlisting} +\pause +\begin{lstlisting} Traceback (most recent call last): File "<stdin>", line 1, in <module> ZeroDivisionError: integer division @@ -324,56 +338,19 @@ or modulo by zero \begin{frame}[fragile] \frametitle{Debugging effectively} - \begin{itemize} \item \kwrd{print} based strategy \item Process: Hypothesis, test, refine, rinse-repeat - \item Using \typ{\%debug} and \typ{\%pdb} in IPython \end{itemize} +\inctime{15} \end{frame} \begin{frame}[fragile] -\frametitle{Debugging: example} -\small -\begin{lstlisting} ->>> import pdb ->>> import mymodule ->>> pdb.run('mymodule.test()') -> <string>(1)<module>() -(Pdb) continue -Traceback (most recent call last): - File "<stdin>", line 1, in <module> - File "/usr/lib/python2.6/pdb.py", line 1207, in run - Pdb().run(statement, globals, locals) - File "/usr/lib/python2.6/bdb.py", line 368, in run - exec cmd in globals, locals - File "<string>", line 1, in <module> - File "mymodule.py", line 2, in test - print spam -NameError: global name 'spam' is not defined -\end{lstlisting} -\end{frame} - -\begin{frame}[fragile] -\frametitle{Debugging in IPython} -\small -\begin{lstlisting} -In [1]: %pdb -Automatic pdb calling has been turned ON -In [2]: import mymodule -In [3]: mymodule.test() ----------------------------------------------- -NameError Traceback (most recent call last) -/media/python/iitb/workshops/day1/<ipython console> in <module>() -/media/python/iitb/workshops/day1/mymodule.pyc in test() - 1 def test(): -----> 2 print spam -NameError: global name 'spam' is not defined -> /media/python/iitb/workshops/day1/mymodule.py(2)test() - 0 print spam -ipdb> -\end{lstlisting} -\inctime{15} + \frametitle{Debugging effectively} + \begin{itemize} + \item Using \typ{\%debug} and \typ{\%pdb} in IPython + \end{itemize} +\inctime{15} \end{frame} \begin{frame}[fragile] |