Most viewed questions in Python

+2 votes
10 answers

How to fix this? ValueError: invalid literal for int() with base 10 error in Python

The following are totally acceptable in python: passing ...READ MORE

Nov 16, 2018 in Python by Nymeria
• 3,560 points
412,731 views
+1 vote
7 answers

How to use not equal operator in python

if 5 != 3: use like this! READ MORE

Dec 2, 2023 in Python by Tamilaaran

edited Mar 5 373,126 views
+1 vote
5 answers

how to exit a python script in an if statement

Instead of using the normal UTF-8 encoding, ...READ MORE

Jul 4, 2023 in Python by bodymist
• 140 points
358,880 views
+5 votes
4 answers

UnicodeDecodeError: 'utf-8' codec can't decode byte 0x87 in position 10: invalid start byte

You have to use the encoding as latin1 ...READ MORE

Jul 11, 2019 in Python by Ritu
343,863 views
+2 votes
9 answers

Python error "IndentationError: expected an indented block"

Python requires its code to be indented ...READ MORE

Jun 17, 2019 in Python by Varun

edited Jun 17, 2019 327,262 views
+1 vote
1 answer

How to find index of element in dataframe Python ?

First, use the dataframe to match the ...READ MORE

Apr 8, 2019 in Python by Esha
284,433 views
+1 vote
4 answers

How do I remove an element from a list by index in Python?

Delete the List and its element: We have ...READ MORE

Jun 7, 2020 in Python by sahil
• 500 points
282,965 views
+3 votes
3 answers

ModuleNotFoundError: No module named 'cv2'

Hi@akhtar, This error may occur if you didn't install ...READ MORE

Apr 9, 2020 in Python by MD
• 95,460 points
273,557 views
+3 votes
2 answers

UnicodeDecodeError: "utf-8" codec can't decode byte in position : invalid start byte

You have to use the encoding as latin1 ...READ MORE

Jul 23, 2019 in Python by Kunal
251,195 views
+1 vote
5 answers

How to read pandas read_csv no with header

Use this logic, if header is present ...READ MORE

Mar 14, 2020 in Python by Shahabuddin
• 160 points
239,153 views
+1 vote
4 answers

how to sort a list of numbers without using built-in functions like min, max or any other function?

Yes it is possible. You can refer ...READ MORE

Jun 27, 2019 in Python by Arvind
• 3,050 points
191,196 views
+1 vote
4 answers

In Python, what is difference between Array and List?

Lists and arrays are used in Python ...READ MORE

Mar 15, 2019 in Python by Taj
• 1,080 points

edited Mar 18, 2019 by Omkar 154,207 views
+1 vote
3 answers

How to change/update cell value in Python Pandas dataframe?

You can use the at() method to ...READ MORE

Apr 8, 2019 in Python by Kunal
148,471 views
+1 vote
12 answers

How to print array/ list without brackets in python?

print(*names, sep = ', ') This is what ...READ MORE

Dec 10, 2018 in Python by Sudo
146,834 views
+1 vote
3 answers

How do I share global variables across modules? - python

The best way to share global variables ...READ MORE

Jul 24, 2019 in Python by Faiza
140,789 views
+1 vote
4 answers

How do i resolve the "unexpected indent" error in python?

Look for the whitespaces which are not ...READ MORE

Aug 2, 2019 in Python by Mohammad
• 3,230 points
140,191 views
0 votes
2 answers

Python Pandas error: AttributeError: 'DataFrame' object has no attribute 'rows'

Try this: data=pd.read_csv('/your file name', delim_whitespace=Tru ...READ MORE

Dec 10, 2020 in Python by anonymous
• 82,800 points
134,255 views
+7 votes
8 answers

What exactly is the function of random.seed() in python?

The seed method is used to initialize the ...READ MORE

Oct 29, 2018 in Python by Rahul
129,089 views
+2 votes
4 answers

How can I replace values with 'none' in a dataframe using pandas

Actually in later versions of pandas this ...READ MORE

Aug 13, 2018 in Python by bug_seeker
• 15,520 points
124,302 views
+1 vote
5 answers

Python error "ERROR: Could not find a version that satisfies the requirement PyQt4 (from versions: none)"

You cannot install PyQt directly from pip. ...READ MORE

Jul 22, 2019 in Python by Bob
122,322 views
0 votes
3 answers

How to get the return value from a thread using python?

FWIW, the multiprocessing module has a nice interface for ...READ MORE

Dec 15, 2020 in Python by Roshni
• 10,440 points
110,260 views
0 votes
3 answers

(unicode error) 'unicodeescape' codec can't decode bytes in position 2-3: truncated \UXXXXXXXX escape

You are getting this error because you ...READ MORE

Dec 31, 2019 in Python by Kalgi
• 52,340 points
103,609 views
0 votes
3 answers

How to find python library path?

Configuring Python to use additional locations for ...READ MORE

Dec 28, 2020 in Python by Nikita
101,957 views
+1 vote
3 answers

Difference between append vs. extend list methods in Python

Python append() method adds an element to ...READ MORE

Aug 21, 2019 in Python by germyrinn
• 240 points
98,066 views
+1 vote
3 answers

How can I use python to execute a curl command?

For sake of simplicity, maybe you should ...READ MORE

Oct 11, 2018 in Python by charlie_brown
• 7,720 points
95,385 views
0 votes
3 answers

Pandas - FillNa with another column

You could do df.Cat1 = np.where(df.Cat1.isnull(), df.Cat2, df.Cat1 ...READ MORE

Dec 15, 2020 in Python by Roshni
• 10,440 points
92,085 views
+1 vote
4 answers

How to install tkinter in pycharm?

Ya, this is a problem with installing ...READ MORE

Apr 4, 2019 in Python by Jishan
90,522 views
0 votes
3 answers

Python Pandas: ValueError: DataFrame constructor not properly called!

The syntax is not right. The right ...READ MORE

Mar 28, 2019 in Python by Ritu
86,611 views
+2 votes
3 answers

ModuleNotFoundError: No module named 'Crypto'

The module you’ve installed is different. To install ...READ MORE

Aug 20, 2019 in Python by Raman
85,025 views
0 votes
1 answer

Pandas: Print rows if value greater than some value

maybe you could take another variable and ...READ MORE

Jun 1, 2023 in Python by anonymous

edited Mar 5 84,963 views
0 votes
3 answers

TypeError: unsupported operand type(s) for -: 'str' and 'str'

& is "bitwise and" operand in Python, you ...READ MORE

Dec 11, 2020 in Python by Rajiv
• 8,870 points
82,032 views
0 votes
1 answer

TypeError: cannot unpack non-iterable NoneType object

Hello, The “TypeError: cannot unpack non-iterable NoneType object” ...READ MORE

Oct 5, 2020 in Python by Lisa
81,225 views
0 votes
4 answers

How to print objects of class using print function in Python?

You have to called the built in ...READ MORE

May 12, 2021 in Python by anonymous

edited Mar 5 79,545 views
0 votes
2 answers

How do I make python wait for a pressed key?

Then use this code: import keyboard keyboard.sleep() READ MORE

Jan 4, 2021 in Python by Reshma
78,947 views
0 votes
2 answers

Is it possible to save python dictionary into json files?

You can save the Python dictionary into ...READ MORE

Mar 17, 2020 in Python by Vishal
• 180 points
76,016 views
0 votes
1 answer

How to find an element in Pandas Dataframe?

You can do it like this: Suppose df is ...READ MORE

Apr 8, 2019 in Python by Tina
75,270 views
0 votes
5 answers

How can I use grep in Python?

The first part starts with grep , followed by ...READ MORE

Dec 14, 2020 in Python by Gitika
• 65,730 points
74,472 views
0 votes
5 answers

what is the difference between append and insert in python lists?

There is a simple difference between append ...READ MORE

Jun 23, 2019 in Python by Harshdeep Khatke
72,000 views
0 votes
4 answers

Is it possible to call one python script from another Python Script?

Try using os.system: os.system("script2.py 1") execfile is different because it is ...READ MORE

Dec 16, 2020 in Python by Gitika
• 65,730 points
71,818 views
0 votes
3 answers

Python exit commands - why so many and when should each be used?

The functions* quit(), exit(), and sys.exit() function in the same way: ...READ MORE

Dec 14, 2020 in Python by Gitika
• 65,730 points
67,585 views
0 votes
3 answers

How to distinguish between a variable and an identifier?

An identifier actually identifies something, it's not the thing ...READ MORE

Dec 16, 2020 in Python by Rajiv
• 8,870 points
67,474 views
+1 vote
7 answers

What do you mean by python scripting? What is a script and a module in python?

A module is a file containing a ...READ MORE

Jun 17, 2019 in Python by Zain Abbas
66,524 views
+1 vote
3 answers

How to print one pandas column without index?

There is a slight mistake in what ...READ MORE

Mar 28, 2019 in Python by Shri
65,383 views
0 votes
2 answers

Do we have pointers in python like other programming languages?

From one point of view, everything is a pointer in Python. Your ...READ MORE

Dec 16, 2020 in Python by Gitika
• 65,730 points

edited Jul 8, 2021 by Sarfaraz 63,215 views
0 votes
1 answer

How do I call a Django function on button click?

Hello @kartik, There are 2 possible solutions that ...READ MORE

Jun 23, 2020 in Python by Niroj
• 82,800 points
62,148 views
+1 vote
4 answers

Python: convert txt file to csv format with rows and columns

Python will read data from a text ...READ MORE

Dec 14, 2020 in Python by Gitika
• 65,730 points
58,710 views
0 votes
3 answers

TypeError: Index(...) must be called with a collection of some kind, 'Email' was passed

It is not working because your code ...READ MORE

May 13, 2020 in Python by anonymous

edited May 13, 2020 by Gitika 57,366 views
0 votes
1 answer

How to install Tensorflow in pycharm ?

For installing TensorFlow your system must be ...READ MORE

Jun 23, 2020 in Python by Varsha Kumari
55,607 views
0 votes
3 answers

AttributeError: 'numpy.ndarray' object has no attribute 'append'

for root, dirs, files in os.walk(directory): ...READ MORE

Dec 12, 2020 in Python by Rajiv
• 8,870 points
53,809 views
0 votes
1 answer

TypeError - 'float' object cannot be interpreted as an integer

Hi, @There, The “TypeError: ‘float’ object cannot be ...READ MORE

Nov 13, 2020 in Python by Gitika
• 65,730 points
53,727 views