# pygraf Release 1.0

Python Graph library

Keywords
Graf, python, Graph
BSD-3-Clause/Apache-2.0
Install
``` pip install pygraf==1.0 ```

## Supports:

Python:Python 2.6+

Author: dw.livion@yandex.ru

## Install:

``````\$ pip install pygraf
``````

or

``````\$ pip3 install pygraf
``````

## Command List:

• graph=pygraf.graf(n,mas)
• graph.check_orient()
• graph.dfs(v,0)
• graph.print_dfs()
• graph.comp(True/False)
• graph.minwayves_wihtout_cicly(v,u)
• graph.minwayprint_wihtout_cicly(v,u)
• graph.del_rebro(v,u)

## pygraf.graf(n,mas)

• n - count of point
• mas - massive of [First point,Second point,Cost]

Example init graph:

``````graph=pygraf.graf(3,[[1,2,2],[1,3,4]])
``````

## graph.check_orient()

Checking directed graph

Example init graph:

``````graph=pygraf.graf(3,[[1,2,2],[1,3,4]])
graph.check_orient()#return true - Directed; False - Undirected
``````

## graph.dfs(v,0)

Starting DFS algoritm from v-point

Example init graph:

``````graph=pygraf.graf(3,[[1,2,2],[2,3,4]])
graph.dfs(2,0)#Nothing return
``````

## graph.print_dfs()

Return result DFS algoritm from v-point

Example init graph:

``````graph=pygraf.graf(3,[[1,2,2],[2,3,4]])
graph.dfs(2,0)#Nothing return
print(graph.print_dfs())#print [False,True,True]
``````

## graph.comp(True/False)

Only for Undirected graph, if graph directed return False

if True:

Return Connected component and List all component:

``````graph=pygraf.graf(3,[[2,1],[2,3],[3,1],[1,3],[1,2],[3,2]])
print(graph.comp(True))#print "1->2" "1->3" "1"
``````

if False:

``````graph=pygraf.graf(3,[[2,1],[2,3],[3,1],[1,3],[1,2],[3,2]])
print(graph.comp(False))#print "1"
``````

## graph.minwayves_wihtout_cicly(v,u)

Print min-cost from v to u

Example init graph:

``````graph=pygraf.graf(3,[[1,2,2],[2,3,4]])
graph.minwayves_wihtout_cicly(2,3)#print "4"
``````

## graph.minwayprint_wihtout_cicly(v,u)

Print min-cost from v to u

Example init graph:

``````graph=pygraf.graf(3,[[1,2,2],[2,3,4]])
graph.minwayprint_wihtout_cicly(2,3)#print "2 3"
``````

Add path from "v" to "u" cost "c"

Example init graph:

``````graph=pygraf.graf(3,[[1,2,2],[2,3,4]])
``````graph=pygraf.graf(3,[[1,2,2],[2,3,4]])