NCO/pynco: ncks命令无法找到/移动文件，文件存在

Question

我正在使用pynco从Python脚本中运行ncks命令。它在尝试在nco_fl_mv()函数中执行移动时报告错误：

$ C:/home/Anaconda3/Library/bin/ncks --dmn=lon,0,28,1 --output=C:/home/data/nclimgrid/201801_nclimgrid_dsd/work/lowres_nclimgrid_tavg_slice00.nc C:/home/data/nclimgrid/201801_nclimgrid_dsd/lowres_nclimgrid_tavg.nc
The system cannot find the path specified.
ncks: ERROR nco_fl_mv() unable to execute mv command "move C:/home/data/nclimgrid/201801_nclimgrid_dsd/work/lowres_nclimgrid_tavg_slice00.nc.pid11800.ncks.tmp C:/home/data/nclimgrid/201801_nclimgrid_dsd/work/lowres_nclimgrid_tavg_slice00.nc"

但是，该文件似乎存在：

$ ls -l C:/home/data/nclimgrid/201801_nclimgrid_dsd/work/lowres_nclimgrid_tavg_slice00.nc.pid11800.ncks.tmp 
-rw-r--r-- 1 James.Adams Domain Users 2.9M Feb  9 13:45 C:/home/data/nclimgrid/201801_nclimgrid_dsd/work/lowres_nclimgrid_tavg_slice00.nc.pid11800.ncks.tmp

当我调试到pynco模块时，我可以看到nco.py中的cmd对象(第263行)如下所示：

<class 'list'>: ['C:\\home\\Anaconda3\\Library\\bin\\ncks', 
                 '--dmn=lon,0,28,1', 
                 '--output=C:/home/data/nclimgrid/201801_nclimgrid_dsd/work/lowres_nclimgrid_tavg_slice00.nc',
              ` 
                 'C:/home/data/nclimgrid/201801_nclimgrid_dsd/lowres_nclimgrid_tavg.nc']`

也许这是权限问题？我使用的是Windows机器上Anaconda上安装的NCO/pynco。这发生在命令行(vanilla NCO)以及使用pynco NCO包装器的脚本中。

提前感谢您的任何见解或建议。

Answer 1

我建议您自己尝试从命令行执行失败的底层命令，并报告是否/如何/是否需要修改才能成功，即尝试以下命令

move C:/home/data/nclimgrid/201801_nclimgrid_dsd/work/lowres_nclimgrid_tavg_slice00.nc.pid11800.ncks.tmp C:/home/data/nclimgrid/201801_nclimgrid_dsd/work/lowres_nclimgrid_tavg_slice00.nc

此外，您可以尝试将--no_tmp_fl开关添加到NCO命令，因为这可以绕过权限问题。