语法错误：无法分配给函数调用

Question

This is my code below

plt.figure(1), plt.subplot(121), df=train.dropna(),
sns.distplot(df['LoanAmount'])

I am getting an error like this

> SyntaxError: can't assign to function call

Answer 1

There are a few things wrong with the code, but I will point out the major points:

plt.figure(1), plt.subplot(121), df=train.dropna(), sns.distplot(df['LoanAmount'])

The commas are interpreted as the line being a tuple, with the equals indicating left and right hand sides, in the same way that

x, y, z = 1, 2, 3

Would be, ie:

plt.figure(1), plt.subplot(121), df =
    train.dropna(), sns.distplot(df['LoanAmount'])

. What you probably meant was

plt.figure(1)
plt.subplot(121)
df = train.dropna()
sns.distplot(df['LoanAmount'])

which you could write (not advisable) as

plt.figure(1); plt.subplot(121); df=train.dropna(); sns.distplot(df['LoanAmount'])

The main error you see is correct, you can't have a line like

a() = b

That assigns to a function call (it would have no meaning), which you do in the original interpretation.