export-to-csv

问题 I have to get mysql data in a CSV file on click of download button. The below code exports data successfully but adds space as separator. But I need comma to be separator not space, As there are space in mysql data and also on static header of csv file. HTML code is below. <form name="downloadform" id="downloadform" action="exportcsv.php" method="POST"> <div style="font-weight:bold; line-height:30px;" class="TableContainer"> <label>Download CSV Format:</label> <button class="blue" name=

问题 I have to get mysql data in a CSV file on click of download button. The below code exports data successfully but adds space as separator. But I need comma to be separator not space, As there are space in mysql data and also on static header of csv file. HTML code is below. <form name="downloadform" id="downloadform" action="exportcsv.php" method="POST"> <div style="font-weight:bold; line-height:30px;" class="TableContainer"> <label>Download CSV Format:</label> <button class="blue" name=

问题 I extract a list of departments from AD like this using PowerShell: $departments = Get-ADUser -Filter * -Property Department | Where-Object { $_.Department } | Select -Expand Department -Unique At the end of this operation, if I input on the console $departments I get all the names of the departments as I wished. But if I try to export this to a .csv file using | Export-Csv H:\TEST\DEPTAAAAA.csv I get this #TYPE System.String Length 4 9 5 13 13 13 How can I export the department names stored

问题 How do I keep excel from removing my formula inserted into a csv to text? For example in my csv I have data and have the formula "=ISNUMBER(SEARCH($A$1,B2))" then I open the csv in excel and see the value of the formula. But when I save, the formula is removed and replaces it with the evaluation of the formula, i.e. true . 回答1: I assume that you have a column of formulas that need to have an "=" added to it... so put your cursor on that column, and then run this macro: Sub equalAdder() While

问题 How to export python dataframe to csv with double quotes. I have tried with below code but its not coming in output file. I need results like "column1","column2",column3"... Please help. exportPath=exportPath+'\\data2Upload.csv' header=['Country','Indicator','Unit','Frequency','Date','Value'] data.to_csv(exportPath,columns=header,sep=',',quotechar='"',index=False) 回答1: You can tell pandas to quote everything by default using the csv.QUOTE_ALL property: data.to_csv(exportPath, columns=header

问题 How to export python dataframe to csv with double quotes. I have tried with below code but its not coming in output file. I need results like "column1","column2",column3"... Please help. exportPath=exportPath+'\\data2Upload.csv' header=['Country','Indicator','Unit','Frequency','Date','Value'] data.to_csv(exportPath,columns=header,sep=',',quotechar='"',index=False) 回答1: You can tell pandas to quote everything by default using the csv.QUOTE_ALL property: data.to_csv(exportPath, columns=header

问题 There are 20,000 records in mongodb collection. I am exporting all these records in a csv. I am send partial response using this : res.writeHead(200, { "Content-Type": "application/csv", "Content-disposition": "attachment; filename='import.csv'" }); res.write(data + '0', "binary"); Above code is executing in batch of 500. I am ending using this code when all records are processed. if (++responseCount == loopCount) { res.end(); } But I got this error : Can't set headers after they are sent.

问题 When I am analyzing data, I save my dataframes into a csv-file and use pd.to_csv() for that. However, the function (over)writes the new file, without checking whether there exists one with the same name. Is there a way to check whether the file already exists, and if so, ask for a new filename? I know I can add the system's datetime to the filename, which will prevent any overwriting, but I would like to know when I made the mistake. 回答1: Try the following: import glob import pandas as pd #

问题 When I am analyzing data, I save my dataframes into a csv-file and use pd.to_csv() for that. However, the function (over)writes the new file, without checking whether there exists one with the same name. Is there a way to check whether the file already exists, and if so, ask for a new filename? I know I can add the system's datetime to the filename, which will prevent any overwriting, but I would like to know when I made the mistake. 回答1: Try the following: import glob import pandas as pd #

问题 I have a Dataframe in which each row contains a sentence followed by a list of part-of-speech tags, created with spaCy: df.head() question POS_tags 0 A title for my ... [DT, NN, IN,...] 1 If one of the ... [IN, CD, IN,...] When I write the DataFrame to a csv file (encoding='utf-8') and re-open it, it looks like the data format has changed with the POS tags now appearing between quotes ' ' like this: df.head() question POS_tags 0 A title for my ... ['DT', 'NN', 'IN',...] 1 If one of the ... [