Outline for May 20, 2014
Reading
:
text
, §13, 18
Due
: Homework #3, due May 21, 2014
Searching a list
Example use: linear search [
linsearch.py
]
Example use: recursive linear search [
rlinsearch.py
]
Tower of Hanoi [
hanoi.py
]
Files
What is a file?
What can you do with it? (For example, read, write, append)
Types of files (text, binary)
File Input and Output for text files
Opening and closing:
open(
filename
,
mode
)
,
close()
Reading:
readline()
,
readlines()
,
read()
,
read(
n
)
Writing:
write(
str
)
,
writelines(
list
)
Examples
Print out a named file [
fileio1.py
]
Print out a named file and prepend line numbers [
fileio2.py
]
Store the output in
filename
.lst [
fileio3.py
]
Examples
Put lines in a file in random order [
randlines.py
]
Read in a list of words from a file, then search it as requested; similar to linear search program [
search-1.py
]
Now see how many words you checked total [
search-1c.py
]
You can also obtain a PDF version of this.
Version of May 19, 2014 at 9:36PM