csv

问题 I have a working code to print random lines from a csv column. #!/usr/bin/python import csv import random **col**=2 with open('<filename>','r') as f: reader=csv.reader(f) data=[row[col] for row in reader] from random import shuffle shuffle(data) print '\n'.join(data[:**100**]) f.close(); I want to paramaterize this script. by passing , position (col) & sample (e.g. 100 values) I am unable to find a decent tutorial which would explain this. any thoughts ? 回答1: You can use the sys module like

问题 I am working on a django/wagtail management command (let's call it "file_upload") that does roughly the following: take "csv" argument, which is a full path to a CSV file. parse and open the result using csv for each row, create and save a custom Wagtail Image model object (inheriting from AbstractImage , with a few extra CharField that I do not think prevent me from doing what I want to do) The (currently simplified) CSV looks like this: 1.jpg,Title 1 2.jpg,Title 2 Does not complicated at

问题 I am working on a django/wagtail management command (let's call it "file_upload") that does roughly the following: take "csv" argument, which is a full path to a CSV file. parse and open the result using csv for each row, create and save a custom Wagtail Image model object (inheriting from AbstractImage , with a few extra CharField that I do not think prevent me from doing what I want to do) The (currently simplified) CSV looks like this: 1.jpg,Title 1 2.jpg,Title 2 Does not complicated at

问题 I am working on a django/wagtail management command (let's call it "file_upload") that does roughly the following: take "csv" argument, which is a full path to a CSV file. parse and open the result using csv for each row, create and save a custom Wagtail Image model object (inheriting from AbstractImage , with a few extra CharField that I do not think prevent me from doing what I want to do) The (currently simplified) CSV looks like this: 1.jpg,Title 1 2.jpg,Title 2 Does not complicated at

问题 I am using Get-WindowsAutopilotInfo to generate a computer's serial number and a hash code and export that info as a CSV. Here is the code I usually use: new-item "c:\Autopilot_Export" -type directory -force Set-Location "C:\Autopilot_Export" Get-WindowsAutopilotInfo.ps1 -OutputFile Autopilot_CSV.csv Robocopy C:\Autopilot_Export \\Zapp\pc\Hash_Exports /copyall This outputs a CSV file named "Autopilot_CSV.csv" to the C:\Autopilot_Export directory and then Robocopy copies it to the Network

问题 I have to export 600k database rows with a belongsTo relationship between two tables to a csv file using a queued job in laravel 5.2, it works fine when I do not include the information from the second table, but it reaches memory limit or timeout I guess (there is no error on the output, the job just stops and the file blocks at ~8MB) when I include the second table. Here is my handle function from my job : public function handle() { $request = $this->request; $ts = Carbon::now()->timestamp;

问题 I have a problem to create a horizontal layout for the csv here is an array which I have convert it to json-format {"datetime":["2000-01-01","2000-01-02","2000-01-03","2000-01-04","2000-01-05","2000-01-06","2000-01-07","2000-01-08","2000-01-09","2000-01-10","2000-01-11","2000-01-12","2000-01-13","2000-01-14","2000-01-15","2000-01-16","2000-01-17","2000-01-18","2000-01-19","2000-01-20","2000-01-21","2000-01-22","2000-01-23","2000-01-24","2000-01-25","2000-01-26","2000-01-27","2000-01-28","2000

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 2 years ago . Improve this question For my project I have to parse two big JSON files, one is 19.7 GB and another 66.3 GB. The structure of the JSON data is too complex. First Level Dictionary and again in 2nd level there might be List or Dictionary. These are all Network Log files, I have to

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 2 years ago . Improve this question For my project I have to parse two big JSON files, one is 19.7 GB and another 66.3 GB. The structure of the JSON data is too complex. First Level Dictionary and again in 2nd level there might be List or Dictionary. These are all Network Log files, I have to

问题 I need some contents to be written in csv format to a file using ansible shell: ps -ef | grep java | awk '{print $1}' register: username shell: ps -ef | grep java | awk '{print $2}' register: id The output for username will be similar to : root admin test_admin The output for id will be similar to: 1232 4343 2233 so I want this to be written to a csv file as root,1232 admin,4343 test_admin,2233 Please suggest. 回答1: You can use a combination of the zip, map and join filters to achieve your