[Tutor] bash find equivalent in Python

[R. Alan Monroe]

> While this seems to work, it also seems wrong to have to guess how many
> levels deep my directory structure is and copy, paste and indent the code
> accordingly.  Is there a recursive find utility in Python similar to bash
> find ?  For example:

You could probably convert your existing program into a recursive one.
Here's one I wrote a few months ago that might give you some ideas.

class node:
        def __init__(self,name):
                self.size=0
                self.name=name
                self.files=[]
                self.dirs=[]


#----------
import os

startdir="c:\\winnt"

def walker(startdir):
        print "BEGIN", startdir, "\r",
        os.chdir(startdir)
        here=node(startdir)
        #print here
        listing = os.listdir(startdir)
        #print listing
        for x in listing:
                #print "  DECIDE ", x,
                #print x
                #print os.path.abspath(x)
                if os.path.isfile(x):
                        #print x, "is a file"
                        y=os.path.getsize(x)
                        here.files.append((x,y))
                        here.size += y
                elif os.path.isdir(x):
                        #print x, "is a dir"
                        #print os.path.abspath(x)
                        recurse = walker(os.path.abspath(x))
                        here.dirs.append(recurse)
                        here.size += recurse.size
                        os.chdir(startdir)
                else:
                        #print x, "is neither"
                        pass
        #print "DONE ", startdir
        return here

def display(here,level):
        for x in range(level):
                print "    ",
        print level, here.name, ":", here.size,
        #y=0
        for x in here.dirs:
                if here.size>0:
                        #y += float(x.size)/float(here.size)
                        print float(x.size)/float(here.size)
                else:
                        print "0.0000000000"
                display(x,level+1)
        #print y


root=walker(startdir)
print root.size

print "\n\n\n\n"

display(root,0)