Regular Expressions 101

^start of line

Non-Capturing Group(?:from\s+(\w+)(?:\.\w+)?\s+)?

?repeats the group contents below at most once:

fromthe literal text from (case sensitive)

\s+any whitespace character, repeated at least once

Group 1(\w+)

\w+any word character, repeated at least once

Non-Capturing Group(?:\.\w+)?

?repeats the group contents below at most once:

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\w+any word character, repeated at least once

\s+any whitespace character, repeated at least once

importthe literal text import (case sensitive)

\s+any whitespace character, repeated at least once

Group 2([^\s,.]+)

Negated Character Class[^\s,.]+

+matches at least one character outside the set below:

\sany whitespace character

,the literal , (44₁₀ / 54₈ / 2C₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

Non-Capturing Group(?:\.\w+)?

?repeats the group contents below at most once:

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\w+any word character, repeated at least once

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

^(?:from\s+(\w+)(?:\.\w+)?\s+)?import\s+([^\s,.]+)(?:\.\w+)?

New

import numpy as np
import pandas as pd
import pkg.mod1, pkg.mod2
from pkg.mod2 import Bar as Qux
from abc.lmn import pqr
from abc.lmn import pqr as xyz
import mod
from mod import s, foo
from mod import *
from pkg.mod3 import *
from mod import s as string, a as alist