st="234"

print(st,"->isnum: ",st.isalnum())

st="Aeiou"
print(st,"->isallalph: ",st.isalpha())

st="312"
print(st,"->chek decimle:",st.isdecimal())
print(st,"->check digit:",st.isdigit())

st="AEIou"
print(st,"->check lower:",st.islower())

print(st,"->check upper:",st.isupper())
st="23heloo"
print(st,"->check numeric:",st.isnumeric())

st="23abcd4"

print(st,"->isnum: ",st.isalnum())

st="Aeiou"
print(st,"->isallalph: ",st.isalpha())

st="312"
print(st,"->chek decimle:",st.isdecimal())
print(st,"->check digit:",st.isdigit())

st="AEIou"
print(st,"->check lower:",st.islower())

print(st,"->check upper:",st.isupper())
st="23heloo"
print(st,"->check numeric:",st.isnumeric())

Update 9string_stringCheck.py