import pandas as pd

df = pd.read_csv('price.csv', sep=';')
df

df.info()

<class 'pandas.core.frame.DataFrame'>
RangeIndex: 11 entries, 0 to 10
Data columns (total 3 columns):
 #   Column  Non-Null Count  Dtype 
---  ------  --------------  ----- 
 0   id      11 non-null     int64 
 1   title   11 non-null     object
 2   price   11 non-null     object
dtypes: int64(1), object(2)
memory usage: 392.0+ bytes

df.dtypes

id        int64
title    object
price    object
dtype: object

df['price'] = df.price.str.replace('$', '')

df

df['price'] = df.price.astype('float')

df.dtypes

id        int64
title    object
price    object
dtype: object

pd.to_numeric(df.price)

0     10
1     11
2      7
3     25
4     35
5      5
6     11
7     16
8     15
9     20
10    10
Name: price, dtype: int64

df['price'] = df.price.astype('uint8')

df.dtypes

id        int64
title    object
price     uint8
dtype: object

df.loc[11] = [12, 'Test', 257]

df

df.dtypes

id        int64
title    object
price     uint8
dtype: object

import numpy as np

np.iinfo(df.price)

iinfo(min=0, max=255, dtype=uint8)

df['price'] = df.price.astype('uint32')

np.iinfo(df.price)

iinfo(min=0, max=4294967295, dtype=uint32)

df.price.sum()

166

	id	title	price
0	1	Ноутбук Acer Aspire 5 A515-54G-502N (NX.HVGEU....	10$
1	2	Ноутбук Asus ROG Strix G15 G512LI-HN057 (90NR0...	11$
2	3	Ноутбук HP Pavilion Gaming 15-bc504ur (7DT87EA...	7$
3	4	Ноутбук HP Pavilion Notebook 15-cw1011ua (8RW1...	25$
4	5	Ноутбук Acer Aspire 7 A715-41G-R7MZ (NH.Q8LEU....	35$
5	6	Ноутбук Dell Inspiron 3582 (I3582C54H5NIL-BK) ...	5$
6	7	Ноутбук Apple MacBook Air 13" 256GB 2020 Space...	11$
7	8	Ноутбук Asus ROG Strix G15 G512LI-HN094 (90NR0...	16$
8	9	Ноутбук HP Pavilion Notebook 15-cw1002ua (7KE5...	15$
9	10	Ноутбук HP Pavilion Notebook 15-cw1005ua (7ZF7...	20$
10	11	Ноутбук Lenovo IdeaPad L340-15IRH Gaming (81LK...	10$