write CSV file in python

Replies to This Discussion

Permalink Reply by Mostapha Sadeghipour Roudsari on February 14, 2013 at 1:31pm

Salam... Something like this should do it:

Attachments:

• hamiaCSV.gh, 2 KB

Permalink Reply by hamia Aghaiemeybodi on February 15, 2013 at 1:20am

Mersi mard,

It's working. thanks a lot.

Permalink Reply by Gordon Dykes on July 18, 2017 at 3:51pm

How is data saved as any other format then xyz points? Would this work if it were number sliders attached as inputs? xyzuv...etc 

Permalink Reply by Christian Gartland on July 18, 2017 at 4:10pm

You can write anything to a CSV file, although the above script would only work for a list of points (and I think you'd probably have to replace all of the grave accents [`] with single quotes). Let's say you have a hypothetical "5D" point, which would be a point with 5 attributes: X, Y, Z, U, V. All you would have to do to modify the script to compile a CSV file of your 5D points would be to change everything between the parentheses after "write".

fileName.write('pt5D.x' + "," + 'pt5D.y' + "," + 'pt5D.z' + "," + 'pt5D.u' \

+ "," + 'pt5D.v' + "\n") 

This is assuming that your object does indeed have these 5 attributes.

Permalink Reply by Gordon Dykes on July 18, 2017 at 11:42pm

This is it, got me stuck with forgetting to set Type hint set to float 

Permalink Reply by Christian Gartland on July 19, 2017 at 7:30am

You can get rid of the for loop altogether as well. With a range from 0 to 1, you're just looping through once, so it doesn't make sense to use a loop in the first place.

Permalink Reply by Mostapha Sadeghipour Roudsari on July 19, 2017 at 8:04am

you can also use join to make it more readable. These two lines of code does the same as your code.

with open(filepath, 'wb) as outf:

   outf.write(','.join((x, y, z, u, v)) + '\n')

Permalink Reply by Felix R. on February 14, 2013 at 5:19pm

There is also a build-in library in Python for that:

http://docs.python.org/2/library/csv.html

Permalink Reply by Toussaint Jimenez Rojas on February 14, 2013 at 5:56pm

the CVS build-in Library doesnt work for IronPython wich is the version of python that run under Rhino 5 

Permalink Reply by person on March 5, 2013 at 5:03pm

True. Has anyone found a workaround in python for this? I'm trying to read a file line by line, essentially look up a line in a file by its line number.

Permalink Reply by Mostapha Sadeghipour Roudsari on March 5, 2013 at 5:08pm

is it a csv file? I haven't tested the code but something like this should work for you:

filename = open(yourFileAddress, 'r')

for lineNumber, line in enumerate(filename): 

          print lineNumeber #print the line number

          print line.split(',')  #print the line

filename.close()

Permalink Reply by Chien Si Harriman on April 16, 2014 at 2:45pm

Classic.