https://www.graphviz.org/download/
安装完成后，bin配置到PATH
验证
# 查看版本
dot -V
pip install graphviz
# https://github.com/gak/pycallgraph
# 不再维护
pip install pycallgraph
# https://github.com/Lewiscowles1986/py-call-graph
pip install python-call-graph
用法一
from pycallgraph import PyCallGraph
from pycallgraph.output import GraphvizOutput
class Calculator:
def __init__(self):
self.result = 0
def add(self, a, b):
self.result = a + b
return self.result
def subtract(self, a, b):
self.result = a - b
return self.result
def get_numbers():
num1 = float(input("Enter the first number: "))
num2 = float(input("Enter the second number: "))
return num1, num2
def main():
calc = Calculator()
num1, num2 = get_numbers()
print("1. Add")
print("2. Subtract")
choice = input("Choose an operation (1/2): ")
if choice == '1':
result = calc.add(num1, num2)
print(f"The result is: {result}")
elif choice == '2':
result = calc.subtract(num1, num2)
print(f"The result is: {result}")
else:
print("Invalid choice")
if __name__ == "__main__":
with PyCallGraph(output=GraphvizOutput()):
main()
在执行结束之后会生成流程图
用法二，执行命令行
pycallgraph graphviz – main.py
Windows上不太行
pip install pylint
生成UML 类图
pyreverse -o pdf main.py