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Rajendra Dharmkar has Published 453 Articles
![Rajendra Dharmkar](https://www.tutorialspoint.com/assets/profiles/9963/profile/60_124173-1512724240.jpg)
Rajendra Dharmkar
77K+ Views
The task or process of importing other files in Python allows you to use functions, classes, or variables defined in those files within your current Python script. In this article, we will explore different ways to import other Python files, including built-in modules, user-defined modules, and importing specific functions or ... Read More
![Rajendra Dharmkar](https://www.tutorialspoint.com/assets/profiles/9963/profile/60_124173-1512724240.jpg)
Rajendra Dharmkar
3K+ Views
Whenever you want to add or subtract(apply an offset) to a date/time, use a datetime.datetime(), then add or subtract datetime.timedelta() instances. A timedelta object represents a duration, the difference between two dates or times. The timedelta constructor has the following function signature − datetime.timedelta([days[, seconds[, microseconds[, milliseconds[, minutes[, hours[, weeks]]]]]]]) ... Read More
![Rajendra Dharmkar](https://www.tutorialspoint.com/assets/profiles/9963/profile/60_124173-1512724240.jpg)
Rajendra Dharmkar
14K+ Views
To insert a date in a MySQL database, you need to have a column of Type date or datetime in your table. Once you have that, you'll need to convert your date in a string format before inserting it to your database. To do this, you can use the datetime ... Read More
![Rajendra Dharmkar](https://www.tutorialspoint.com/assets/profiles/9963/profile/60_124173-1512724240.jpg)
Rajendra Dharmkar
10K+ Views
We can pass re.IGNORECASE to the flags parameter of search, match, or sub −Example import re print (re.search('bush', 'BuSh', re.IGNORECASE)) print (re.match('bush', 'BuSh', re.IGNORECASE)) print (re.sub('bush', 'xxxx', 'Bushmeat', flags=re.IGNORECASE))Output xxxxmeat
![Rajendra Dharmkar](https://www.tutorialspoint.com/assets/profiles/9963/profile/60_124173-1512724240.jpg)
Rajendra Dharmkar
15K+ Views
According to Python docs, re.finditer(pattern, string, flags=0)Return an iterator yielding MatchObject instances over all non-overlapping matches for the RE pattern in string. The string is scanned left-to-right, and matches are returned in the order found. Empty matches are included in the result. The following code shows the use of re.finditer() method ... Read More
![Rajendra Dharmkar](https://www.tutorialspoint.com/assets/profiles/9963/profile/60_124173-1512724240.jpg)
Rajendra Dharmkar
12K+ Views
The re.compile() methodre.compile(pattern, repl, string): We can combine a regular expression pattern into pattern objects, which can be used for pattern matching. It also helps to search a pattern again without rewriting it. Example import re pattern=re.compile('TP') result=pattern.findall('TP Tutorialspoint TP') print result result2=pattern.findall('TP is most popular tutorials site of India') ... Read More
![Rajendra Dharmkar](https://www.tutorialspoint.com/assets/profiles/9963/profile/60_124173-1512724240.jpg)
Rajendra Dharmkar
5K+ Views
The following code extracts floating numbers from given text/string using Python regex. Example import re s = "Sound Level: -11.7 db or 15.2 or 8 db" result = re.findall(r"[-+]?\d*\.\d+|\d+", s) print result OutputThis gives the output['-11.7', '15.2', '8']
![Rajendra Dharmkar](https://www.tutorialspoint.com/assets/profiles/9963/profile/60_124173-1512724240.jpg)
Rajendra Dharmkar
5K+ Views
According to Python documentationPython does not currently have an equivalent to scanf(). Regular expressions are generally more powerful, though also more verbose, than scanf() format strings. The table below offers some more-or-less equivalent mappings between scanf() format tokens and regular expressions.scanf() TokenRegular Expression%c.%5c.{5}%d[-+]?\d+%e, %E, %f, %g[-+]?(\d+(\.\d*)?|\.\d+)([eE][-+]?\d+)?%i[-+]?(0[xX][\dA-Fa-f]+|0[0-7]*|\d+)%o[-+]?[0-7]+%s\S+%u\d+%x, %X[-+]?(0[xX])?[\dA-Fa-f]+To extract the filename and ... Read More
![Rajendra Dharmkar](https://www.tutorialspoint.com/assets/profiles/9963/profile/60_124173-1512724240.jpg)
Rajendra Dharmkar
4K+ Views
The following code uses a regular expression '(a|b)' to match a or b in the given Python string.We are also using the flag re.I to ignore case of a or b while matching. Example import re s = 'Bank of Baroda' print(re.findall(r'(a|b)', s, re.I))OutputThis gives the output['B', 'a', 'B', ... Read More
![Rajendra Dharmkar](https://www.tutorialspoint.com/assets/profiles/9963/profile/60_124173-1512724240.jpg)
Rajendra Dharmkar
6K+ Views
You can subtract a day from a Python date using the timedelta object. You need to create a timedelta object with the amount of time you want to subtract. Then subtract it from the date. Example from datetime import datetime from datetime import timedelta today = datetime.today() yesterday = today ... Read More