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Prevent pandas read_csv treating first row as header of column names

由 陌路散爱 提交于 2019-12-28 02:10:07
问题 I'm reading in a pandas DataFrame using pd.read_csv . I want to keep the first row as data, however it keeps getting converted to column names. I tried header=False but this just deleted it entirely. (Note on my input data: I have a string ( st = '\n'.join(lst) ) that I convert to a file-like object ( io.StringIO(st) ), then build the csv from that file object.) 回答1: You want header=None the False gets type promoted to int into 0 see the docs emphasis mine: header : int or list of ints,

Selecting a row in a DataGridView and having the arrow on the row header follow

由 本秂侑毒 提交于 2019-12-17 23:27:54
问题 This is in C#. If I select a row in a DataGridView with DataGridViewRow.Selected = true, the row selects just fine, but the arrow in the "column header" (the grey very leftmost column) doesn't follow. How do I set that? Another question: If I set a column format to "centered" in the designer, the column header is still left aligned. How do I set the column header to be centered too? Thanks, Brian 回答1: This is straight from google: In a DataGridView, the selected row and the current row

context menu for datagridview cell, rowheader and columnheader

由 一笑奈何 提交于 2019-12-09 09:43:38
问题 I want to set different context menu for datagridview cells, rowheaders and columnheaders. The idea is that when I right-click any of these items, a different context menu is displayed. How do i do this? 回答1: Use the DataGridView's MouseDown event to test if the right mouse has been clicked and if so use the associated HitTestInfo property to determine if a cell, row or column has been clicked. Use this information to display the ContextMenuStrip you need. Here's an example MouseDown event

MySQL dump into CSV text files with column names at the top? [duplicate]

由 二次信任 提交于 2019-11-30 13:03:19
问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: How to export / dump a MySql table into a text file including the field names (aka headers or column names) I use this SQL snippet to dump a table into CSV text files: SELECT * FROM brand INTO OUTFILE "e:/brand.csv" FIELDS TERMINATED BY ',' ENCLOSED BY '"' LINES TERMINATED BY "\n"; However this approach doesn't add the column names at the beginning of the CSV file. My question is how to select all the column /

MySQL dump into CSV text files with column names at the top? [duplicate]

由 空扰寡人 提交于 2019-11-30 04:59:30
Possible Duplicate: How to export / dump a MySql table into a text file including the field names (aka headers or column names) I use this SQL snippet to dump a table into CSV text files: SELECT * FROM brand INTO OUTFILE "e:/brand.csv" FIELDS TERMINATED BY ',' ENCLOSED BY '"' LINES TERMINATED BY "\n"; However this approach doesn't add the column names at the beginning of the CSV file. My question is how to select all the column / field names as well, just like what phpMyAdmin does when you export the table and select "Put fields names in the first row". I figured out a way around having to
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