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How can I remove the first line of a text file using bash/sed script?
...ink the OP is trying to achieve what made me find this question. I have 10 CSV files with 500k lines in each. Every file has the same header row as the first line. I am cat:ing these files into one file and then importing them into a DB letting the DB create column names from the first line. Obvious...
Read file data without saving it in Flask
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I was trying to do the exact same thing, open a text file (a CSV for Pandas actually). Don't want to make a copy of it, just want to open it. The form-WTF has a nice file browser, but then it opens the file and makes a temporary file, which it presents as a memory stream. With a lit...
How can I get around MySQL Errcode 13 with SELECT INTO OUTFILE?
I am trying to dump the contents of a table to a csv file using a MySQL SELECT INTO OUTFILE statement. If I do:
13 Answers...
Difference between BeautifulSoup and Scrapy crawler?
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Feed exports: It basically allows us to save data in various formats like CSV,JSON,jsonlines and XML.
Asynchronous scraping: Scrapy uses twisted framework which gives us power to visit multiple urls at once where each request is processed in non blocking way(Basically we don't have to wait for a r...
JavaScript curry: what are the practical applications?
...th all the same values but one. To steal John's example:
String.prototype.csv = String.prototype.split.partial(/,\s*/);
var results = "John, Resig, Boston".csv();
alert( (results[1] == "Resig") + " The text values were split properly" );
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How do I declare a global variable in VBA?
...value each time.
See example (function to save attachements of an email as CSV).
Public Numerator As Integer
Public Sub saveAttachtoDisk(itm As Outlook.MailItem)
Dim objAtt As Outlook.Attachment
Dim saveFolder As String
Dim FileName As String
saveFolder = "c:\temp\"
For Each objAtt In itm.A...
insert multiple rows via a php array into mysql
...ays use mysql's LOAD DATA:
LOAD DATA LOCAL INFILE '/full/path/to/file/foo.csv' INTO TABLE `footable` FIELDS TERMINATED BY ',' LINES TERMINATED BY '\r\n'
to do bulk inserts rather than using a bunch of INSERT statements.
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How can I detect the encoding/codepage of a text file
In our application, we receive text files ( .txt , .csv , etc.) from diverse sources. When reading, these files sometimes contain garbage, because the files where created in a different/unknown codepage.
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How can I strip the whitespace from Pandas DataFrame headers?
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If you use CSV format to export from Excel and read as Pandas DataFrame, you can specify:
skipinitialspace=True
when calling pd.read_csv.
From the documentation:
skipinitialspace : bool, default False
Skip spaces after delimite...
Split delimited strings in a column and insert as new rows [duplicate]
... R. It assumes we're starting with a data.frame named "mydf". It uses read.csv to read in the second column as a separate data.frame, which we combine with the first column from your source data. Finally, you use reshape to convert the data into a long form.
temp <- data.frame(Ind = mydf$V1,
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