csv

问题 I'm reading data from a csv file. I get that 'row' is the variable that represents the loop I am going through, but what is the "_" that is being thrown away here? for row in csv_reader: _, Student.objects.get_or_create( first_name=row[0], last_name=row[1], email=row[2], organisation=row[3], enrolled=row[4], last_booking=row[5], credits_total=row[6], credits_balance=row[7], ) For example, this code also works: for row in csv_reader: Student.objects.get_or_create( first_name=row[0], last_name

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 last month . I have a csv file which has two columns: column A for image links and column B for names. First and second columns are comma separated. I need to download all files in column A and assign them names in column B. I have tried the syntax below: #!/bin/bash while IFS=',' read -r url

问题 This is my sample data in csv file. As you can see for ID = '51126' there is a column which has data in word wrap format, The data is entered using atl+enter. I need to remove word wrap and etner into a single line and add double quotes to entire csv file. ID,OPPORTUNITY ID,CREATED_DATE,TIR NAME,MS Rep,SRC_SSR_REP,REGION,HP PBM NAME,COMPANY NAME,COMPANY ADDRESS,COMPANY CITY,COMPANY STATE,COMPANY ZIPCODE,COMPANY AMID,COMPANY USER CONTACT NAME,COMPANY USER TITLE,COMPANY USER PHONE,COMPANY USER

问题 So if I have a directory like below is there a way to scan how many files with a specific code in its name. For example if I want the number of files that start with 17042020 which would be 6 from the directory below? 1704202001-01.csv 1704202001-02.csv 1704202002-01.csv 1704202002-02.csv 1704202003-01.csv 1704202003-02.csv 001.png 002.pdf 003.docx 004.jpg 回答1: Use os to get a list with your files : import os list = os.listdir("path") for element in list: if yourconditions: print(element) 回答2

问题 I am using the csv library to pull data to into an email body. I am pulling certain columns from the csv for the body. I am using a junk gmail account to test. I'm just confused on how to use the for loop. If I'm correct, you need a for loop to read the rows then a for loop to email out. I did read Reading and Writing CSV Files but was uncertain how to implement it with smtplib. import csv, smtplib, ssl message = """Subject: Your Title {supervisor} {title} {start}""" from_address = "test

问题 The problem seems to be trivial but I still struggle on it. The error is java.lang.ArrayIndexOutOfBoundsException: Index 1 out of bounds for length 1 from which I understand only the first index from the array can be accessed ( id which is the primary key in that case). Why is that? Don't I determine the length of the array automatically based on the number of items separated by delimiter when I load the file CSV file ? What is wrong with my readFile() method then ? UserData.java import javax

问题 loading a csv file with pandas which store numpy arrays and strings, results in empty fields for the numpy values. As nicely explained here, I load the csv with a converter as the numpy values are converted into strings. def converter(instr): return np.fromstring(instr[1:-1],sep=' ') myFile = pd.read_csv('./EMBEDDINGS_224.csv', converters={'Embedding':converter}) The result per row is just [] The original 'Embedding' entry looks like this. [[0.58197206 2.53598 0. ... 0.6681144 0.08705447 2

问题 I'm new at sqlplus and I need a help. I have the select below, and I want to add a While looping to generate a CSV file for each day of the period. Can someone help me? Thanks! set pagesize 0 set colsep '|' set echo off set feedback off set linesize 1000 set trimspool on set headsep off define start_date = '01/01/2004' define end_date = '02/01/2004' define start_csv = TO_CHAR(TO_DATE('&start_date.','DD/MM/YYYY'), 'YYYY-MM-DD') define end_csv = TO_CHAR(TO_DATE('&start_date.','DD/MM/YYYY'),

问题 I'm new at sqlplus and I need a help. I have the select below, and I want to add a While looping to generate a CSV file for each day of the period. Can someone help me? Thanks! set pagesize 0 set colsep '|' set echo off set feedback off set linesize 1000 set trimspool on set headsep off define start_date = '01/01/2004' define end_date = '02/01/2004' define start_csv = TO_CHAR(TO_DATE('&start_date.','DD/MM/YYYY'), 'YYYY-MM-DD') define end_csv = TO_CHAR(TO_DATE('&start_date.','DD/MM/YYYY'),

问题 I want to monitor air quality inside my flat (downstairs neighbor is an avid smoker). For so doing, I have a Raspberry Pie 3 Model B+ connected with an Enviro+. While in the terminal I can run the script that measures small particles. python particulates.py cf. https://github.com/pimoroni/enviroplus-python/blob/master/examples/particulates.py It then runs and display the data in the terminal, like in the picture below: (yes, I am better at lego-ing, than coding). I am interested in keeping a