本文整理汇总了Python中arcpy.DeleteField_management方法的典型用法代码示例。如果您正苦于以下问题：Python arcpy.DeleteField_management方法的具体用法？Python arcpy.DeleteField_management怎么用？Python arcpy.DeleteField_management使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类arcpy的用法示例。
在下文中一共展示了arcpy.DeleteField_management方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: rename_col
# 需要导入模块: import arcpy [as 别名]
# 或者: from arcpy import DeleteField_management [as 别名]
def rename_col(tbl, col, newcol, alias = ''):
"""Rename column in table tbl and return the new name of the column.
This function first adds column newcol, re-calculates values of col into it,
and deletes column col.
Uses arcpy.ValidateFieldName to adjust newcol if not valid.
Raises ArcapiError if col is not found or if newcol already exists.
Required:
tbl -- table with the column to rename
col -- name of the column to rename
newcol -- new name of the column
Optional:
alias -- field alias for newcol, default is '' to use newcol for alias too
"""
if col != newcol:
d = arcpy.Describe(tbl)
dcp = d.catalogPath
flds = arcpy.ListFields(tbl)
fnames = [f.name.lower() for f in flds]
newcol = arcpy.ValidateFieldName(newcol, tbl) #os.path.dirname(dcp))
if col.lower() not in fnames:
raise ArcapiError("Field %s not found in %s." % (col, dcp))
if newcol.lower() in fnames:
raise ArcapiError("Field %s already exists in %s" % (newcol, dcp))
oldF = [f for f in flds if f.name.lower() == col.lower()][0]
if alias == "": alias = newcol
arcpy.AddField_management(tbl, newcol, oldF.type, oldF.precision, oldF.scale, oldF.length, alias, oldF.isNullable, oldF.required, oldF.domain)
arcpy.CalculateField_management(tbl, newcol, "!" + col + "!", "PYTHON_9.3")
arcpy.DeleteField_management(tbl, col)
return newcol