```
from sympy import symbols, solve
from math import pi, log10, sqrt
D_i = 0.5
epsilon = 0.0005
nu = 1.21*10**(-5)
V = 132.4169
Re = V * D_i / nu
f = symbols('f')
f = solve(-2 * log10((epsilon / D_i) / 3.7 + 2.51 / (Re * sqrt(f))) - 1 / sqrt(f), f)
```

And I get the error:

TypeError: Cannot convert expression to float

Referring to what’s inside the log10() and sqrt()