I am using a basic script in Python but am getting the following error. What does it mean?

Question

arcpy.env.workspace("C:/Student/PythonGP10_0/Data/SanJuan.gdb")
arcpy.env.overwriteOutput = True
fcList = arcpy.ListFeatureClasses()
bufferList = []
for fc in fcList:
    if fc == "Lakes" or fc == "Streams":
        arcpy.Buffer_analysis(fc, fc + "Buffer", "1000 meters")
        bufferList.append(fc + "Buffer")
arcpy.Union_analysis(bufferList, "WaterBuffers")

Followed by this error when I run the script:

 Traceback (most recent call last):
 File "C:\Python27\ArcGIS10.2\Lib\site-packages\pythonwin\pywin\framework\scriptutils.py", line 326, in RunScript
 exec codeObject in __main__.__dict__
 File "C:\Student\PythonGP10_0\Scripts\BufferWater.py", line 3, in <module>
 arcpy.env.workspace("C:/Student/PythonGP10_0/Data/SanJuan.gdb")
 TypeError: 'unicode' object is not callable

Answer 1

根据ArcGIS帮助 ，应设置arcpy.env.workspace ，而不是调用：

arcpy.env.workspace = "C:/Student/PythonGP10_0/Data/SanJuan.gdb"