Parsing data - English

Questions posted on ST Forums:

• IndexError: list index out of range

  I have entered the following code in the editormath_marks_A = []for line in open("student_record.txt"):    fields = line.split(";")    region_code = fields[0]    region_code_stripped = region_code.strip()    math_mark_str = fields[5]    math_mark = float(math_mark_str)    if region_code == "A":        math_marks_A.append(math_mark)but i am getting the following error after running the fileTraceback (most recent call last):  File "/home/ranjeet/Desktop/python_plot/marks.py", line 6, in <module>    math_mark_str = fields[5]IndexError: list index out of rangeplease help

  12-13M 50-60S ranjeet71
  
  
  Answer last updated on: July 22, 2024, 3:24 p.m.

  ---

• Difference between %run <file name> and %run -i<file name>

  When should we use %run -i<file name> command and when should we use %run <file name> command?

  09-10M 50-60S stutisamanta04@gmail.com
  
  
  Answer last updated on: July 25, 2023, 2:40 p.m.

  ---

• %run marks.py command error in windows

  In [27]: %run marks.py  File "C:\Users\wci\marks.py", line 8    if region_code== "A";                        ^SyntaxError: invalid syntax

  09-10M 50-60S @its_Prachit
  
  
  Answer last updated on: Sept. 9, 2021, 6:51 p.m.

  ---

• error in %run command

  after typing the last command %run marks.py , it shows an error as%run marks.py---------------------------------------------------------------------------NameError                                 Traceback (most recent call last)~\marks.py in <module>      9         math_marks_A.append(math_mark)     10---> 11 math_marks_mean=sum(math_maths_A)/len(math_marks_A)     12 print(math_marks_mean)NameError: name 'math_maths_A' is not defined

  10-11M 30-40S KAVYA_30
  
  
  Answer last updated on: June 5, 2021, 7:52 p.m.

  ---

• parsing data

  In [29]: %run marks.pyIn [30]: %run marks.py---------------------------------------------------------------------------TypeError                                 Traceback (most recent call last)~\marks.py in <module>     10     11---> 12 math_marks_mean = sum(math_marks_A) / len     13 (math_marks_A)     14 print (math_marks_mean)TypeError: unsupported operand type(s) for /: 'float' and 'builtin_function_or_method'

  10-11M 30-40S Adarsh1211
  
  
  Answer last updated on: Oct. 26, 2020, 9:53 a.m.

  ---

• %run marks.py error

  %run marks.pyit shows that  math_marks_mean = sum(math_marks_A)/len(math_marks_A)then it shows that type error : unsupported operand type(s) for /: 'float' and 'builtin_function_or_method,

  10-11M 30-40S aryamistry18@gnu.ac.in
  
  
  Answer last updated on: Oct. 6, 2020, 11:01 a.m.

  ---

• %run marks.py

   I tried running the command after saving the marks.py in the working directory but it still shows%run mark.py  File "C:\Users\HP\mark.py", line 2    for line in open("student_record.txt")                                          ^SyntaxError: invalid syntax

  09-10M 10-20S ASHABAREE
  
  
  Answer last updated on: Sept. 7, 2020, 10:15 p.m.

  ---

• split

  can we merge/concatenate/combine two String?

  04-05M 30-40S HITESH_NINAMA
  
  
  Answer last updated on: June 5, 2020, 2:28 p.m.

  ---

• Error in run command

  Am not getting the mean value as per video. Its showing an error as %run -i "C:\Users\HP\Desktop\marks.py"ERROR:root:File `'C:\\Users\\HP\\Desktop\\marks.py'` not found.Can you please help me...

  10-11M 30-40S sweacha.lakshmi@gmail.com
  
  
  Answer last updated on: May 28, 2020, 12:37 a.m.

  ---

• Not getting the final output

  After typing the code and using the run command, I am not able to get the mean value.

  10-11M 40-50S asad.ad1l
  
  
  Answer last updated on: May 8, 2020, 9:31 p.m.

  ---

• %run error

  i am using windows 10,i place the command, %run desktop/marks.py got an error....In [31]: %run desktop/marks.py---------------------------------------------------------------------------TypeError                                 Traceback (most recent call last)~\desktop\marks.py in <module>      8     if region_code=="A":      9         math_marks_A.append(math_mark)---> 10 math_marks_mean = sum(math_marks_A)/len     11 (math_marks_A)     12 print (math_marks_mean)TypeError: unsupported operand type(s) for /: 'float' and 'builtin_function_or_method'the code as below:math_marks_A=[]for line in open("desktop/student_record.txt"):    fields=line.split(";")    region_code=fields[0]    region_code_stripped=region_code.strip()    math_mark_str=fields[5]    math_mark=float(math_mark_str)    if region_code=="A":        math_marks_A.append(math_mark)math_marks_mean = sum(math_marks_A)/len(math_marks_A)print (math_marks_mean)

  10-11M 20-30S vineetsingh23
  
  
  Answer last updated on: May 8, 2020, 2 p.m.

  ---

• Self-assessment solution

  1. Shouldn't the answer be line.split(';')?; instead of ,

  11-12M 40-50S sakshithakur18@gmail.com
  
  
  Answer last updated on: April 24, 2020, 10:21 a.m.

  ---

• error %run

  running file marks.py gives error on line 'math_marks_mean=sum(math_mark)/len'--> 'float' object is not iterable.code written in marks.py file is==>math_marks_A=[]for line in open("student_record.txt"):    fields = line.split(";")    region_code=fields[0]    region_code_stripped=region_code.strip()    math_mark_str=fields[5]    math_mark=float(math_mark_str)    if region_code=="A":        math_marks_A.append(math_mark)math_marks_mean=sum(math_mark)/len(math_marks_A)Print(math_marks_mean)

  10-11M 30-40S gourihalde@gmail.com
  
  
  Answer last updated on: April 23, 2020, 10:49 a.m.

  ---

• Difference between the commands

  I have confusion between %run file and %run -i file. In both the cases, i am getting the output but i want to know which one to be used in which instance. what does -i indicates in the later command.

  10-11M 30-40S madhavan.11601828@lpu.in
  
  
  Answer last updated on: April 21, 2020, 10:24 p.m.

  ---