def stripComments(code: str) -> str:
    """Remove comments from a Python code string."""
    lines = code.split("\n")
    lines = [line.split("#")[0].rstrip() for line in lines]
    lines = [line for line in lines if line]
    lines = [f"{line}\n" for line in lines]
    return "".join(lines)


print("Testing stripComments()...", end="")
code = """\
# here's a comment!
def foo(x):
    return x + 1    # here's another one
"""
result = """\
def foo(x):
    return x + 1
"""
assert stripComments(code) == result

code = """\
def g(x):
# Here are some comments
# which must be removed
# by stripComments
    return  x * 7
"""
result = """\
def g(x):
    return  x * 7
"""
assert stripComments(code) == result

code = """\
def doIHaveAnyComments():
    return 'No'
"""
result = """\
def doIHaveAnyComments():
    return 'No'
"""
assert stripComments(code) == result

code = """\
def f(x):
#This function returns x + 5
    return x + 5
"""
result = """\
def f(x):
    return x + 5
"""
assert stripComments(code) == result

assert stripComments("") == ""
print("Passed!")