我试图在java程序中使用jython
从netbeans执行python文件。
我的代码是这样的:
PythonInterpreter.initialize(System.getProperties(), System.getProperties(),
new String[0]);
PythonInterpreter interp = new PythonInterpreter();
interp.execfile("as1.py");
错误是:
Traceback (most recent call last):
File "as1.py", line 2, in <module>
import datetime
ImportError: No module named datetime
以及相互依赖的python文件也没有导入它们在同一目录中。
像:
PythonInterpreter.initialize(System.getProperties(), System.getProperties(), new String[0]);
PythonInterpreter interp = new PythonInterpreter();
interp.execfile("calen.py");
python文件是:
calen.py:
from as1 import *
print ( "I am printing" + str(Moh(1000).run()))
as1.py:
from time import time
import datetime
class Moh:
def __init__(self, n):
self.n = n
def run(self):
data = [1,2,3,4,5]
start = time()
for i in range(self.n):
data.append(i)
end = time()
return ( end - start )/self.n
if __name__ == "__main__":
print ( "I am printing" + str(Moh(1000).run()))
错误是:
Traceback (most recent call last):
File "calen.py", line 1, in <module>
from as1 import *
ImportError: No module named as1
答案 0 :(得分:2)
必须为PythonInterpreter设置“python.path”,以便它可以加载as1模块。为此,您必须以这种方式初始化PythonInterpreter:
Properties properties = System.getProperties();
properties.put("python.path", PATH_TO_PARENT_DIRECTORY_OF_AS1_PY);
PythonInterpreter.initialize(System.getProperties(), properties, new String[0]);
PythonInterpreter interp = new PythonInterpreter();
interp.execfile("calen.py");