- Author:
- michaeljtbrooks
- Posted:
- June 19, 2012
- Language:
- Python
- Version:
- Not specified
- Score:
- 0 (after 0 ratings)
Displays nested lists / dicts / tuples in an aligned hierarchy to make debugging easy. Accepts all variable types, including nested lists with any mixture of tuples / dictionaries / lists / numbers / strings.
Analogous to the PHP print_r($var) function.
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# ONLEY GROUP - www.onleygroup.com #
# "Give Something Back Project" #
# (useful code we give away) #
# #
# Copyright (c) 2012, Onley Group - [email protected] #
# #
# Onley Free License (OFL): #
# Permission to use, copy, modify, and/or distribute this software for #
# any purpose with or without fee is hereby granted, provided that the #
# above copyright notice and this permission notice appear in all #
# copies and derivative works. #
# #
# You CAN sell this software. You CAN use this software in proprietary #
# closed-source products. #
# #
# THE SOFTWARE IS PROVIDED "AS IS" AND ONLEY GROUP DISCLAIMS ALL #
# WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED #
# WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ONLEY #
# GROUP BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL #
# DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA #
# OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER #
# TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR #
# PERFORMANCE OF THIS SOFTWARE. #
# ---------------------------------------------------------------------#
# Title: TreePrint #
# Language: Python #
# Type: Function(s) #
# Description: #
# Displays nested lists / dicts / tuples in an aligned hierarchy to #
# make debugging loops easy. Accepts all variable types, inc mixed. #
# Usage: #
# >>> treeprint(varname) #
########################################################################
def tree(var, level=1, outstr=''):
#Takes a var, prints it out as nested aligned list
if var is None:
#Just return a new line:
outstr+=' \n'
elif isinstance(var, (int, float, long, complex, str, bool, unicode)):
#Single value, simply add the fucker
outstr+=' '+str(var)
outstr+=' \n'
elif isinstance(var, (list, tuple)):
#List with some specified order, print in order
outstr+='\n'
k=0 #Manually index this
for valchild in var:
for tab in range(level-1): # Print key
outstr+='\t'
outstr+='['+str(k)+'] => '
k+=1 #Increment index
newlevel = level + 1
outstr = tree(valchild,newlevel,outstr)
elif isinstance(var,(dict)):
#List with keys and values, no order
outstr+='\n'
for k,valchild in sorted(var.iteritems()):
for tab in range(level-1): # Print key
outstr+='\t'
outstr+='['+str(k)+'] => '
newlevel = level + 1
outstr = tree(valchild,newlevel,outstr)
else:
#It doesn't qualify as any of the above cases
outstr+=' '+str(var)
outstr+=' \n'
return outstr
def treeprint(var):
#Wrapper for tree
outstr = tree(var)
print outstr
return outstr #Available to caller for wider use
|
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Comments
didn't test this snippet, but isn't pprint not enough and standard solution in python 2.7?
from pprint import pprint<br /> pprint(list)
#
pprint doesn't do hierarchical alignment very well and makes a hash of variables that contain mixtures of lists, tuples etc. This snippet aims to make it really easy to see how such variables are structured and the values they contain.
#
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