xlwings Getting Started guide and use
I compared openxl and xlwings official documents, found xlwings official website API is clear and concise,
if you are just getting started, do not go to Baidu in accordance with the function to search a sentence to the splicing code
direct spend an hour a look API interface specification, basically you will be used
at the same time, the official website also put some small examples to get you started
xlwings official website API specification
, for example some operations module
Open xlsx file and process a close
import xlwings as xlw app = xlw.App(visible=True, add_book=False) app.display_alerts = False app.screen_updating = False # excel whether to show content wb = app.books.open(self.XlsPath) procxls () # personal process wb.save () after saving treatment # wb.close () # close the file handle to write to the file app.quit () # close the app
Write multiple rows of data
Store list
List # [2,3] is stored in the A1: C1 in
sht.range('A1').value=[1,2,3]
# The list [1,2,3] stored in A1: A3 in
sht.range('A1').options(transpose=True).value=[1,2,3]
# The 2x2 table, i.e. two-dimensional array stored in A1: B2, as a first line 1, a second row 3,4
sht.range('A1').options(expand='table')=[[1,2],[3,4]]
options () function, Chinese documents rarely described clearly, suggest that you go to the official website, do not be misled
xlwings Advanced Interface
As for some simple operations, it has been written very much blog, I will give you the lead over, it is no longer described in detail here
Some read xlwings, writing table API usage, Chinese blog address
Efficiency
Start efficiency
open (start win environment that comes with office-excel Setup program) (equivalent to help you open the excel table to operate on); this efficiency depends on your own computer performance, are generally required to take about 3s, I tried I had a little old notebook to 5s;
app = xlw.App(visible=True, add_book=False) app.display_alerts = False app.screen_updating = False # excel whether to show content wb = app.books.open(self.XlsPath)
Refresh efficiency
app.screen_updating = False option is to configure the display content is refreshed in real time excel program,
if the distribution is True, I observed would lead to about three times slower.
Interface to read and efficiency recommendations
To excel in reading, writing, basically through
sht.range ( "A1"). value [read]
sht.range ( "A1"). value = ' Hello' [writing]
this side can have personality problems, if you are a cell in a cell to read and write, especially slow, I read + write cycle 2000 cells, the basic time-consuming 30s
, however, if you batch reading, writing, and soon will be able to become, for example: a read, write an entire row
sht.range ( "A1: Z1") value [read].
sht.range. ( "A1: Z1") value = ( 'Hello', 'hello', 'hello', ...) [write]
so to improve efficiency, we should try to bulk operations
Color read and write performance and disadvantages
Top proved bulk operations to improve efficiency, however, read and write accurate color have a place, do not support batch operations
sht.range ( "A1"). color [read]
sht.range ( "A1"). color = (210, 67, 9) [write]
project I do, needs to be based on the color table to do different operations (modifications , delete, etc.), can only lead to one cell cycle cell to traverse
Original: https: //blog.csdn.net/wskzgz/article/details/89181501