[英]Error when trying to convert dbf to csv in Python
這里的Python新手,請保持溫柔。
我正在嘗試將dbf文件轉換為csv。 我偶然發現了一個先前的類似問題(盡管轉換相反),並且正在考慮使用dbf模塊。
使用文檔中的示例,我嘗試了以下代碼:
import dbf
dbf_fn = r'_PATH_HERE_\dbffile.dbf'
csv_fn = r'_PATH_HERE_\csvfile.csv'
in_db = dbf.Table(dbf_fn)
in_db.export(filename=csv_fn, header=True)
當我嘗試運行它時,出現以下錯誤:
Traceback (most recent call last):
File "<pyshell#24>", line 1, in <module>
in_db.export(filename=csv_fn, header=True)
File "C:\Python27\ArcGIS10.1\lib\site-packages\dbf.py", line 3379, in __getattr__
return object.__getattribute__(self, name)
AttributeError: 'Db3Table' object has no attribute 'export'
為什么導出失敗?
更新:
按照chm的建議,我現在使用:
dbf.export(in_db, csv_fn, header=True)
這仍然會導致問題:
Traceback (most recent call last):
File "D:\Data_RP\data\projects\kN\GIS\python\04_convert_dbf_ALT.py", line 31, in <module>
dbf.export(in_db, filename=csv_fn, header=True)
File "C:\Python27\ArcGIS10.1\lib\site-packages\dbf.py", line 5670, in export
table = source_table(table_or_records[0])
File "C:\Python27\ArcGIS10.1\lib\site-packages\dbf.py", line 3384, in __getitem__
return self._table[value]
File "C:\Python27\ArcGIS10.1\lib\site-packages\dbf.py", line 3175, in __getitem__
raise DbfError("%s is closed; record %d is unavailable" % (meta.filename, index))
DbfError: D:\Data_RP\data\projects\kN\GIS\shapes\SWM_4N.dbf is closed; record 0 is unavailable
我發現網站上的文檔有誤。如果在代碼中使用幫助,則會看到正確的文檔,如下所示:
export(table_or_records, filename, field_names=None,
format='csv', header=True, codepage=None)
writes the records using CSV or tab-delimited format, using the filename
given if specified, otherwise the table name
if table_or_records is a collection of records (not an actual table) they
should all be of the same format
1.現在export
不是Table
類的成員。 只需使用dbf.export(in_db, csv_fn, header=True)
代替in_db.export(filename=csv_fn, header=True)
2.創建表后使用open
(代碼示例:)
import dbf
csv_fn = r'sdv.csv'
table = dbf.Table('temptable.dbf')
table.open()
dat=('John Doe', 31)
table.append(dat)
dbf.export(table, csv_fn, header = True)
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