Question

我具有subrpocess函数来启动postgres表。但是我收到文件路径错误

filepath = self.get_path(filename)
...

if not append:
# Create the new table itself without adding actual data.
  print "this is the path {}\n\n".format(filepath)
  print "does file exist".format(os.path.isfile(filepath))
  create_table = subprocess.Popen(['shp2pgsql', '-p', '-I',
                                   '-s', str(srid),
                                   '-W', encoding,
                                    filepath, table],
                                    stdout=subprocess.PIPE,
                                    stderr=subprocess.PIPE,
                                    universal_newlines=True)

这是我得到的回溯：

this is the path C:/Urbansims/inputs\geographies/cities.shp


does file exist? True
Traceback (most recent call last):
  File "loading_data.py", line 117, in <module>
    loader.load_shp_map({value["sql_in"]:"/".join(value["input"].rsplit("/",2)[1:]) for key,value in geo_inputs.iteritems()})
  File "c:\urbansims\libs\spandex\spandex\io.py", line 416, in load_shp_map
    self.load_shp(filename=value, table=table, drop=True)
  File "c:\urbansims\libs\spandex\spandex\io.py", line 369, in load_shp
    universal_newlines=True)
  File "C:\Anaconda2\lib\subprocess.py", line 394, in __init__
    errread, errwrite)
  File "C:\Anaconda2\lib\subprocess.py", line 644, in _execute_child
    startupinfo)
WindowsError: [Error 2] The system cannot find the file specified

该路径存在，并且os.find.path返回该位置的True。如果它显然是文件的正确路径，为什么系统找不到该路径？

Answer 1

您正在使用filepath作为要在单独过程中启动的shp2pgsql工具的自变量。错误是由于找不到shp2pgsql。

子进程系统找不到指定的文件错误

1 个答案: