Selecting patterns in character sequence using regex

Question

I would need to select all the accounts were 3 (or more) consecutive characters are identical and/or include also digits in the name, for example

Account
aaa12
43qas
42134dfsdd
did 

Output

Account
aaa12
43qas
42134dfsdd 

I am considering of using regex for this: [a-zA-Z]{3,}, but I am not sure of the approach. Also, this does not include the and/or condition on the digits. I would be interested in both for selecting accounts with at least one of these:

• repeated identical characters,
• numbers in the name.

Answer 1

Can you try:

x = re.search([a-zA-Z]{3}|\d, string) 

Answer 2

Give this a try

n = 3 #for 3 chars repeating
pat = f'([a-zA-Z])\\1{{{n-1}}}|(\\d)+' #need `{{` to pass a literal `{`
df_final = df[df.Account.str.findall(pat).astype(bool)] 

Out[101]:
      Account
0       aaa12
1       43qas
2  42134dfsdd