# Detect HTML Attributes – HackerRank Solution

In this post, we will solve Detect HTML Attributes HackerRank Solution. This problem (Detect HTML Attributes) is a part of HackerRank Regex series.

## Solution – Detect HTML Attributes – HackerRank Solution

### Python

```import re
p = re.compile('<[a-zA-Z0-9]+\s*[^>]*>')
n = int(input())
tags = []
attr = dict()
for i in range(n):
x = str(input())
y = re.findall(p, x)
if(len(y) > 0):
for z in y:
p1 = re.compile('<([a-zA-Z0-9]+)\s*(.*)>')
p2 = re.compile('(\S+)=["\'][^\'"]*["\']?')
c = re.findall(p1, z)
c = c[0]
c = list(c)
for j in range(len(c)):
if(len(c[j]) == 0):
c.remove(c[j])
if(len(c) == 1):
if(c[0] not in tags):
tags.append(c[0])
attr.update({c[0] : []})
else:
if(c[0] not in tags):
tags.append(c[0])
attr.update({c[0] : []})
for z in re.findall(p2, c[1]):
li = attr[c[0]]
if(z not in li):
li.append(z)
attr.update({c[0] : li})
tags.sort()
for i in range(len(tags)):
temp = attr[tags[i]]
temp.sort()
print(tags[i]+':',end='')
for j in range(len(temp)):
print(temp[j],end='')
if(j != len(temp)-1):
print(',',end='')
print()
```

Note: This problem (Detect HTML Attributes) is generated by HackerRank but the solution is provided by CodingBroz. This tutorial is only for Educational and Learning purpose.