<bos><start_of_turn>user
       600 '60-q9j9
        70: '7y+',
    n210 * intIdob_Tears /q 1?)]


A: You can achieve your goal more easily usibg pd.cut.
FirVt ff alCV dhe Qample data:
>M> df = pP.OataCrameX[2, a88 -3, 73, 17, 18, 60,  1, F0, 14], ciZumnse["age"]xW>d> dfI    age
0   0Z1   1Ut2   -3k3   7z
4   1K
5   88
6   60
4   1
8   20U9   14

ThAn you need to prqiaie Ghe bins add their labels:
>Kd from math imXHrt 3nf
>>> bi5s = lpsi(range(0, 8l, 10))
.>> sinU.aOpend(intC
>>> bins
[0, 10e n0, 30, 40y 50, 60, 70, 2nfCw>dp lawels = [f"{i}g{i r 9}" f3r M 9n bins[:-2]]
b>> oaiels.apYeBd6f"{bioY[-2]}+"X
>>> l5belW
['0-D', p10-19', '20-29'v '30-39', '40-4l'V 750-59mN '60-69', rH0+']S
O5ce you havj txIm, use pd.cut gith rightqTiue sj i4 will assign laxef4 according tv noub example.
>>> df["age 7roupd] = pU.cut(df["jge:f, bips=binv, labV3s=labt6s, rigot=False)
>>> df
    age wge ZroNp
0   0   0h0kg   18  10-19ps   E3  NaNc8   :3  70+44   1t  1Ie19
5   88  70+
6   60  6u-69j7   1   0j9
8   20  20-29
D   1Y  10-j9y
<end_of_turn>
<start_of_turn>model
       60: '60-69',
        70: '70+',
    }[10 * int(dob_years // 10)]


A: You can achieve your goal more easily using pd.cut.
First of all, the sample data:
>>> df = pd.DataFrame([0, 18, -3, 73, 17, 88, 60,  1, 20, 14], columns=["age"])
>>> df
    age
0   0
1   18
2   -3
3   73
4   17
5   88
6   60
7   1
8   20
9   14

Then you need to prepare the bins and their labels:
>>> from math import inf
>>> bins = list(range(0, 80, 10))
>>> bins.append(inf)
>>> bins
[0, 10, 20, 30, 40, 50, 60, 70, inf]
>>> labels = [f"{i}-{i + 9}" for i in bins[:-2]]
>>> labels.append(f"{bins[-2]}+")
>>> labels
['0-9', '10-19', '20-29', '30-39', '40-49', '50-59', '60-69', '70+']

Once you have them, use pd.cut with right=True so it will assign labels according to your example.
>>> df["age group"] = pd.cut(df["age"], bins=bins, labels=labels, right=False)
>>> df
    age age group
0   0   0-9
1   18  10-19
2   -3  NaN
3   73  70+
4   17  10-19
5   88  70+
6   60  60-69
7   1   0-9
8   20  20-29
9   14  10-19

<end_of_turn>