读取ENVI.dat时出现Python Arcpy.describe问题

Question

这可能看起来微不足道，但我似乎可以跟踪错误，而且我是Python的新手，尽管不是编程的新手。在互联网上看了一会儿，我认为我的问题是.dat ENVI图像文件没有被读取为“描述对象”。但是我怎么才能让它被这样读呢？我可能也需要它来读取标题信息，有什么解决方案吗？

下面是我的代码：

import arcpy #make sure you run the python associated with ArcGIS
import os

filepath = 'filepath'
filename = 'filename'
band_names = range(1,225)

# Path creation
in_folder = filepath + os.sep + 'ENVI'
out_folder = filepath + os.sep + 'GeoTIFF' # preferably an empty folder

# input multiband raster
in_ENVI = in_folder + filename '.dat'
in_raster = raster(in_ENVI)
index = 0

# get raster information specific to each band
desc = arcpy.Describe(in_raster)

################### THIS IS WHERE I GET THE ERROR ##################
Runtime error 
Traceback (most recent call last):
  File "<string>", line 23, in <module>
NameError: name 'raster' is not defined
################### SCRIPT TERMINATED ##############################

for band in desc.children:
    print band
    bandName = band.name
    band_path = os.path.join(in_raster, bandName)
    dest_path = os.path.join(out_folder, filename '_' + band_names(index) + '.tif')
    arcpy.CopyRaster_management(band_path, dest_path, "", "", "", "NONE", "NONE", "")
    index = index + 1

Answer 1

好的，实际上我自己弄明白了。下面是我使用的代码。错误实际上不是出现在arcpy.Describe()中，而是出现在arcpy.CopyRaster_management中，因为我没有将band_nameindex转换为字符串。

dest_path = os.path.join(out_folder, filename + str(band_names[index]) + '.tif')