python-pandasHow to execute not equal query on dataframe

Usage example

import pandas as pd

df = pd.DataFrame({
  'phone': ['ip5', 'ip6', 'ip8', 'sms', 'xi'],
  'price': [204, 304, 404, 405, 305]
})

found = df[df['price'] != 304]
print(found)

output

  phone  price
0   ip5    204
2   ip8    404
3   sms    405
4    xi    305