Articles by Vaibhav

Plotly Howto's

1. Live Graphs Using Dash and Plotly
2. How to Create Choropleth Maps With Locationmode in Plotly
3. How to Plot Candlestick Charts in Plotly

Python How-To's

1. How to Capture and Save Video Using OpenCV
2. How to Fix Resolve the NameError: Global Name __File__ Is Not Defined Error in Python
3. How to Fix MemoryError in Python
4. How to Perform Authentication Using the Requests Module in Python
5. The fnmatch Module in Python
6. How to Encode a String as Base64 Using Python
7. The Telnetlib Module in Python
8. Annotations in Python
9. clock() and time() Methods of the Time Module in Python
10. Difference Between pass and continue Keywords in Python
11. How to Configure Logging to Syslog in Python
12. How to Read and Write INI File in Python
13. How to Use the cat Command in Python
14. Most Common Docstring Patterns in Python
15. How to Clamp Numbers Within a Range Using Python
16. How to Convert XML to CSV Using Python
17. How to Decode UTF-8 in Python
18. How to Reverse a Linked List in Python
19. isalpha() in Python
20. Python Set Pop() Method
21. String Interpolation in Python
22. The filter() Method and Lambda Functions in Python
23. How to Fix the Iteration Over a 0-D Array Error in Python NumPy
24. How to Fix the Key Error in a Dictionary in Python
25. How to Fix the No Such File in Directory Error in Python
26. How to Implement a High Pass Filter Using Python
27. How to Invoke the Super Constructor of the Parent Class in Python
28. How to Iterate Through a Tuple in Python
29. How to Write Float Values to a File in Python
30. ORM in Python
31. How to Fix the Too Many Indices for Array Error in Python
32. How to Fix the TypeError: must be str, not int in Python
33. How to Fix the Unhashable Type numpy.ndarray Error in Python
34. How to Get the Filename and a Line Number in Python
35. How to Pretty Print XML Output Pretty in Python
36. Multithreading in Python
37. Optional Arguments for a Class Constructor in Python
38. How to Concatenate Multiple Files Into a Single File in Python
39. How to Convert a String to a Float Value in Python
40. How to Fix the Unicode Error Found in a File Path in Python
41. How to Read a Pickle File Using Python
42. How to Simulate Keyboard Inputs in Python
43. How to Create a List of Tuples From Multiple Lists and Tuples in Python
44. How to Get a Subarray of an Array in Python
45. How to Get the Timezones List Using Python
46. How to Parse Over Boolean Values in Command-Line Arguments in Python
47. How to Print Quotes in Python
48. How to Slice a Dictionary in Python
49. The zip() Function in Python
50. How to Pass Multiple Arguments in Lambda Functions in Python
51. How to Add Key-Value Pairs to a Dictionary Within a Loop in Python
52. How to Check if Two Strings Are Anagrams Using Python
53. How to Compare Two Strings Character by Character in Python
54. How to Get Data From a URL in Python
55. How to Read a CSV With Its Header in Python
56. How to Solve Algebraic Equations Using Python
57. How to Transpose a Matrix in Python
58. How to Create a Zip Archive of a Directory Using Python
59. How to Create requirements.txt in Python
60. How to List All the Methods of a Python Module
61. How to Read an Excel File Using Python
62. Float Division in Python
63. How to Append Data to a New Line in a File Using Python
64. How to Get HTML With HTTP Requests in Python
65. How to Parse Command Line Arguments Using Python
66. [: -1] in Python
67. How to Draw a Rectangle Using OpenCV Module in Python
68. How to Implement Gradient Descent Using NumPy and Python
69. How to Invert an Image Using OpenCV Module in Python
70. How to Parse a Log File in Python
71. Nested try...except Statements in Python
72. Timer Class in the Threading Module in Python
73. How to Execute a Script in Python
74. How to Exit From the Python Command Line
75. How to Restart a Loop in Python
76. Naming Convention for Functions, Classes, Constants, and Variables in Python
77. Project Structure for a Python Application
78. Structures in Python
79. Ceiling Division in Python
80. How to Connect to a Microsoft SQL Server Using Python and Pyodbc
81. How to Implement the Viterbi Algorithm in Python
82. How to Print a Line Break in Python
83. How to Read XLSX Files Using Python and Pandas
84. How to Swap Two Values in Python
85. Tuple Comprehension in Python
86. Difference Between sort() and sorted() in Python
87. How to Do Nothing Inside an if Statement in Python
88. Data Classes in Python
89. How to Create a Set of Sets in Python
90. How to Plot an Array in Python
91. How to Run Python in HTML
92. How to Write Line by Line to a File Using Python
93. How to Calculate Log Base 2 of a Number in Python
94. How to Convert Floating-Point Number to an Integer in Python
95. How to Print an Exception in Python
96. How to Extract Substring From a String in Python
97. How to Exit Codes in Python
98. How to Generate GUID/UUID in Python
99. How to Get Sum of a List in Python
100. How to Write JSON to a File in Python
101. How to Get the Current Year in Python

SQLite Howtos

1. Boolean Datatype in SQLite Database
2. How to Check if Table Exists in SQLite Database
3. How to Delete a Column in SQLite Database
4. How to Fix Error: Unable to Open a SQLite Database File in Django
5. How to Get Column Names in SQLite Database
6. How to Import Data From a CSV File in SQLite
7. How to Locate and View Google Chrome Login Data Database
8. Stored Procedures in SQLite

Python Functions

1. Python math.log10() Method
2. Python math.log2() Method
3. Python math.lgamma() Method
4. Python math.log() Method
5. Python math.log1p() Method
6. Python math.modf() Method
7. Python math.pi Attribute
8. Python math.nan Attribute
9. Python datetime.datetime.year Attribute
10. Python datetime.tzinfo Class
11. Python math.acos() Method
12. Python math.acosh() Method
13. Python math.asin() Method
14. Python datetime.datetime.replace() Method
15. Python datetime.timezone Class
16. Python os.set_handle_inheritable() Method
17. Python os.set_inheritable() Method
18. Python os.stat_result Class
19. Python sys.stdin Attribute
20. Python datetime.date.date.fromtimestamp() Method
21. Python datetime.date.date.replace() Method
22. Python datetime.date.date.toordinal() Method
23. Python datetime.datetime.timetuple() Method
24. Python datetime.time.replace() Method
25. Python datetime.time.time.strftime() Method
26. Python datetime.timedelta.timedelta Days Attribute
27. Python datetime.astimezone() Method
28. Python datetime.date() Method
29. Python datetime.datetime.hour Attribute
30. Python datetime.datetime.month Attribute
31. Python sys.exit() Method
32. Python sys.path Attribute
33. Python os.cpu_count() Method
34. Python os.device_encoding() Method
35. Python os.dup() Method
36. Python os.dup2() Method
37. Python os.fspath() Method
38. Python os.path.islink() Method
39. Python os.path.lexists() Method
40. Python os.path.sameopenfile() Method
41. Python os.getpid() Method
42. Python os.path Module
43. Python os.fsencode() Method
44. Python os.fstat() Method
45. Python os.fsync() Method
46. Python os.get_terminal_size() Method
47. Python os.getcwdb() Method
48. Python os.getlogin() Method

Python NumPy Howtos

1. Overflow Encountered in numpy.exp() Function in Python
2. How to Convert String to Float in NumPy
3. How to Count Zeros in NumPy Array
4. How to Filter Elements in a NumPy Array
5. How to Remove Nan Values From a NumPy Array
6. How to Convert Float Array to Int Array in NumPy
7. How to Remove Elements From Array in NumPy
8. How to Transpose a 1D Array in NumPy
9. NumPy Autocorrelation

Python Matplotlib Howto's

1. How to Create a Normalized Histogram Using Python Matplotlib
2. How to Draw Vertical Lines on a Plot Matplotlib

Python Pandas Howtos

1. How to Convert a Pandas Series of Datetime to String in Python

Django Howto's

1. How to Bulk Update in Django
2. How to Convert a QuerySet to a JSON in Django
3. How to Reset Migrations in Django
4. Timezone in Django
5. Best Practices for a Django Working Directory Structure
6. How to Completely Uninstall a Django App
7. How to Delete a Record of a Model in Django
8. How to Log Messages to the Console in Django
9. How to Reset Database in Django
10. How to Reverse Lookups of Foreign Keys in Django
11. How to Rollback the Last Database Migration in Django
12. How to to Store Phone Numbers in Django
13. Meta Class in Django Models
14. How to Automate createsuperuser command in Django
15. How to Change the Label Text Based on the Field Type in Django Forms
16. How to Connect Django to MySQL Database
17. How to Secure Sensitive Information in Django on GitHub
18. Function of On_delete Parameter in Django Models
19. How to Activate Virtual Environment in Django
20. How to Check the Logged in User in Django
21. How to Create a JSON Response in Django
22. How to Check Django Version
23. How to Represent One to Many Relationship in Django
24. How to Upload a File in Django