added coding solved questions for commit

Author: StrangeCoder1729

10_Question.py

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+
+# 10. Write a Python program that matches a letter at the beginning of a string.
+
+import re
+
+str1 = input("Enter String : ")
+
+ 
+res = re.findall(r'^\w',str1)
+print(res)

11_Question.py

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+
+# 11. Write a Python program that matches a word at the end of string, with optional punctuation.
+
+import re
+
+
+def matching(text):
+    res = re.findall(r'\w\W$',str1)
+    if res:
+        return "Matched !!"
+    else:
+        return "Not Matched !!"
+str1 = input("Enter String : ")
+
+print(matching(str1))
+ 

12_Question.py

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+# 2. Write a Python program that matches a word containing 'z'. 
+
+import re
+
+
+def matching(str1):
+    res = re.findall(r'\w*[z]{1}\w+',str1)
+    if res:
+        return "Matched !!"
+    else:
+        return "Not Matched !!"
+str1 = input("Enter String : ")
+
+
+
+print(matching(str1))

13_Question.py

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+# 13. Write a Python program that matches a word containing 'z', not at the start or end of the word
+
+from importlib.abc import ResourceLoader
+import re
+
+def matching(str1):
+    res = re.findall(r'\B[z]\B',str1)
+    if res:
+        return "Matched !!!"
+    else:
+        return "Not matched !!!"
+
+str1 = input("Enter string : ")
+print(matching(str1))

14_Question.py

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+
+# 14. Write a Python program to match a string that contains only upper and lowercase letters, numbers, and underscores
+
+import re
+
+def matching(str1):
+    res = re.findall(r'\w+_+',str1)
+    if res:
+        return "Matched"
+    else:
+        return "Not Matched"
+
+str1 = input("Enter String : ")
+
+print(matching(str1))

15_Question.py

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+# 15. Write a Python program where a string will start with a specific number
+
+import re
+
+def matching(str1):
+    res = re.findall(r'^123',str1)
+    if res:
+        return "Matched !!!"
+    else:
+        return "Not matched !!"
+
+str1 = input("Enter String : ")
+
+print(matching(str1))

16_Question.py

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+# 16. Write a Python program to remove leading zeros from an IP address.
+
+import re
+
+def matching(str1):
+    res = re.sub(r'\.[0]*','.',str1)
+    return res
+
+
+str1 = input("Enter String : ")
+
+print(matching(str1))
+

17_Question.py

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+# 17. Write a Python program to check for a number at the end of a string.
+
+import re
+
+def matching(str1):
+    res = re.findall(r'.\d$',str1)
+    if res:
+        return "Matched !!!"
+    else:
+        return "Not matched !!"
+
+str1 = input("Enter String : ")
+
+print(matching(str1))

18_Question.py

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+# 18. Write a Python program to search the numbers (0-9) of length between 1 to 3 in a given string.
+
+
+import re
+def matching(str1):
+    res = re.finditer(r'(\d{1,3})',str1)
+    return res
+str1 = input("Enter String : ")
+
+ans = matching(str1)
+
+for i in ans:
+    print(i.group())
+
+ 

19_Question.py

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+# 19. Write a Python program to search some literals strings in a string.
+
+import re
+
+def matching(str1,name):
+    pattern = ['fox', 'dog', 'horse' ]
+    # res = re.findall(r'.fox ',str1)
+    for word in pattern:
+        if re.findall(word,str1):
+            print("Got a Matched !!!")
+        else:
+            print("Not a match !!")
+
+str1 = input("Enter String : ")
+name = "fox"
+
+matching(str1,name)

1_Question.py

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+
+# 1. Write a Python program to check that a string contains only a certain set of characters (in this case a-z, A-Z and 0-9)
+
+import re
+
+str1 = input("Enter string : ")
+
+res = re.findall(r'\w',str1)
+
+res1 = ' '.join(res)
+print(res1)

20_Question.py

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+# 20. Write a Python program to search a literals string in a string and also find the location within the original string where the pattern occurs.
+
+import re
+
+def matching(str1,patterns):
+    lst_str1 = str1.split('.')
+    str1_new = ' '.join(lst_str1)
+    lst2 = str1_new.split(' ')
+    count = 0
+    for pattern in patterns:
+        matching = re.search(pattern,str1_new)
+        if re.findall(pattern,str1_new):
+            print(f"For {pattern} Got a Match !!")
+            print(f"Position : {matching.start()} - {matching.end()}")
+        else:
+            print("Not a Match !!")
+
+
+# str1 = input("Enter String : ")
+str1 = "The quick brown fox jumps over the lazy dog."
+patterns = ["dog","lazy","fox"]
+
+matching(str1,patterns)

21_Question.py

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+# 21. Write a Python program to find the substrings within a string.  
+
+import re
+
+pattern = "exercises"
+str1 = 'Python exercises, PHP exercises, C# exercises'
+
+
+lst =  re.findall(pattern, str1)
+print(f"Substrings : {lst}")

2_Question.py

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+# 2. Write a Python program that matches a string that has an a followed by zero or more b's. 
+
+import re
+
+str1 = input("Enter string : ")
+
+result = re.findall(r'^a(b*)$',str1)
+print(result)
+

3_Question.py

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+# 3. Write a Python program that matches a string that has an a followed by one or more b's.  
+
+
+
+import re 
+
+str1 = input("Enter String : ")
+
+res = re.findall(r'^a(b+)$',str1)
+
+print(res)

4_Question.py

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+# 4. Write a Python program that matches a string that has an a followed by zero or one 'b'.
+
+import re
+
+str1 = input("Enter string : ")
+
+res = re.findall(r'^a(b?)$',str1)
+
+print(res)

5_Question.py

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+# 5. Write a Python program that matches a string that has an a followed by three 'b'.
+
+import re
+
+str1 = input("Enter string : ")
+
+res = re.findall(r'^ab{3}$',str1)
+print(res)

6_Question.py

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+# 6. Write a Python program that matches a string that has an a followed by two to three 'b'.
+
+import re
+
+str1 = input("Enter String : ")
+
+res = re.findall(r'^ab{2,3}$',str1)
+print(res)

7_Question.py

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+# 7. Write a Python program to find sequences of lowercase letters joined with a underscore.
+
+import re
+
+str1 = input("Enter String : ")
+
+res = re.findall(r'[a-z]+_[a-z]+$',str1)
+print(res)

8_Question.py

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+# 8. Write a Python program to find the sequences of one upper case letter followed by lower case letters
+
+
+import re
+
+str1 = input("Enter String : ")
+
+res = re.findall(r'[A-Z][a-z]+$',str1)
+
+print(res)
+
+
+ 

9_Question.py

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+# 9. Write a Python program that matches a string that has an 'a' followed by anything, ending in 'b'.
+
+import re
+
+
+str1 = input("Enter String : ")
+
+res = re.findall(r'a.*b$',str1)
+print(res)