I'm getting errors attempting to import a csv on Windows, can someone provide the correct syntax?
I'm trying this: copy checking from 'file://C:\Users\jdoe\Downloads\testfile.csv' return summary;
and variations and get a 'SQLActionException[SQLParseException: Illegal character in authority at index 7: file://C:\Users\jdoe\Downloads\testfile.csv]
Thanks, Mark
I think you need to add backslash and forward slash (and change others to forward slashes) after drive letter as per this documentation. So something along the lines of
copy checking from 'file://C:\/Users/jdoe/Downloads/testfile.csv' return summary
Related
This is my first time working on a python project outside of school, so bear with me.
When I run the code below, I get the error
"(unicode error) 'unicodeescape' codec can't decode bytes in position 2-3: truncated\uXXXXXXXX escape"
and the IDLE editor highlights the '(' before the argument of pd.read_csv.
I googled the error but got a lot of stuff that went way over my head.
The csv file in question is an excel file i saved as csv. should i save it some other way?
import pandas as pd
field = pd.read_csv("C:\Users\Glen\Documents\Feild.csv")
I just want to convert my excel data into a data frame and I don't understand why it was so easy in class, and it's now so difficult on my home pc.
The problem is with the path. There are two ways to mention the path while reading a csv file,
1- Use double backslashes,
pd.read_csv("C:\\Users\\Glen\\Documents\\Feild.csv")
2- Use single forwardslash,
pd.read_csv("C:/Users/Glen/Documents/Feild.csv")
If these do not work, try this one,
pd.read_csv("C:\\Users\\Glen\\Documents\\Feild.csv", encoding='utf-8')
OR
pd.read_csv("C:/Users/Glen/Documents/Feild.csv", encoding='utf-8')
When I do the 'ls' command in the terminal on my Raspberry Pi 2, I see different types of names of files, some like "#example.cpp#", as well as others like "homework1.cpp~".
What do these two file types mean, and how can I get rid of them? Simply using the 'rm' command doesn't seem to be working for me. Thanks!
Some applications will create a copy of a file and use special characters when creating the filename for the copy. For instance some text editors will make a copy of a file you are starting to edit by using the same name and adding a tilde character (~) to the end of the file. That way you will have a backup of the file that you are about to edit.
Another reason would be if an application is processing the file into a temporary file with the temporary file then being used for the next step. For example perhaps the C/C++ compiler is reading the file homework1.cpp with the C Preprocessor to generate the temporary file #homework1.cpp# which is then compiled by the compiler to generate the object code file.
I am not familiar with raspberry pi so am not sure as to what may be creating the filenames with the pound sign (#) on the front and back. Perhaps it is the C++ compiler. I am pretty sure the files with the tilde character on appended to the end of the file name is a back file from vi or vim containing a copy of the file at the time it was last opened with the text editor.
One thing that you could do is to look in those files to see what is there using a Linux command or a text editor. If you use a text editor I would copy the file to another folder as a back up and then look at it there.
Edit: Someone just posted and then deleted an answer which also mentioned about how to remove these files.
What I read was that the rm command is used however for some kinds of special characters you will need to use quotes around the name and you may also need to use an escape to escape certain special characters.
The command shell reads the command line you type in and makes changes to the text before passing it on to the command you type in. So if the filename has a space in it, say jj Johny then when you remove the file you have to specify rm "jj Johny" since spaces are used by the command processor to separate out arguments.
The other poster mentioned that you had to escape out the pound sign (#) using the back slash character in order to prevent it from being modified by the command processor.
I need to have my VB.NET program rename a file over the network.
Microsoft says that My.Computer.FileSystem.RenameFile does not work if the file path starts with two backslashes ("\\"). So, what other way is there of doing this? I just need to rename a file in the domain, for instance:
rename("\\domain\1\exemple.txt", "\\domain\1\exemple2.txt")
The second parameter for rename should be just the file name eg:
My.Computer.FileSystem.RenameFile("C:\Test.txt", "SecondTest.txt")
So try changing your code to this:
My.Computer.FileSystem.RenameFile(#"\\domain\1\exemple.txt", "exemple2.txt")
Also beware of escaping because \ is an escape character, so add a # before any string that contains \. This will cause it to ignore escaping and therefore will treat \ as a normal character
I'm stuck with what seems like a weird BigQuery bug : I cannot upload a CSV file that starts (first line, first column) by an integer.
Here's my schema : COL1:INTEGER,COL2:INTEGER,COL3:STRING
Here's my csv file content :
100,4,XXX
100,4,XXX
If I put the STRING column as first column, the upload is OK.
If I add a header and tell BigQuery to skip it during the import, the upload is ok too.
But with the CSV and schema above, BigQuery always complains : Line:1 / Field:1, Value cannot be converted to expected type.
Anyone knows what the problem is ?
Thank you in advance,
David
I could not reproduce this problem--I copied and pasted the content into a file and uploaded it with no problems.
Perhaps the uploaded file format is corrupted somehow? If there are extra bytes at the beginning of the file, those would be ignored in a header row but might result in this error is the first value of the first field is expected to be an integer. I'd recommend examining the actual binary data in the file to make sure there's nothing funny going on.
Also, are you doing this import via web UI, command-line tool, or API? Have you tried one of the other methods?
Is there a way to script consecutive Replace-All operations in Notepad++?
For example, I want to be able to first replace all “ characters with &ldquo and then to replace all ” characters with &rdquo and then I would like to replace all "string1" with "string2", etc...
Nevermind,
I finally figured it out, and it seems like a great solution.
I used PythonScript for NotePad++ (which is what I started with but which kept giving me errors, until I finally fixed a few things).
So, here is the code for those who may be interested:
# This Python file uses the following encoding: utf-8
import os, sys
editor.replace(r"“",r"“")
editor.replace(r"”",r"”")
editor.replace(r"’",r"’")
the r before the quotation marks allows the use of special characters as they are, and this is what was so difficult for me to get working.