From 987fc04c2778bbaff51912c3eb530ae97cec13c2 Mon Sep 17 00:00:00 2001
From: cclauss <cclauss@me.com>
Date: Sun, 14 Jul 2019 11:27:47 +0200
Subject: [PATCH 1/3] Travis CI: Add pytest --doctest-modules maths

---
 .travis.yml                    |  1 +
 maths/abs_min.py               |  9 ++++++---
 maths/binary_exponentiation.py | 17 +++++++++--------
 maths/lucas series.py          | 13 -------------
 maths/lucas_series.py          | 14 ++++++++++++++
 maths/sieve_of_eratosthenes.py |  6 ++----
 6 files changed, 32 insertions(+), 28 deletions(-)
 delete mode 100644 maths/lucas series.py
 create mode 100644 maths/lucas_series.py

diff --git a/.travis.yml b/.travis.yml
index 9afc0c93a037..6a7137c85d60 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -23,6 +23,7 @@ script:
       dynamic_programming
       hashes
       linear_algebra_python
+      maths
       matrix
       networking_flow
       other
diff --git a/maths/abs_min.py b/maths/abs_min.py
index d546196aa1b5..abb0c9051b7d 100644
--- a/maths/abs_min.py
+++ b/maths/abs_min.py
@@ -1,10 +1,11 @@
-from abs import abs_val
+from .abs import abs_val
+
 
 def absMin(x):
     """
-    # >>>absMin([0,5,1,11])
+    >>> absMin([0,5,1,11])
     0
-    # >>absMin([3,-10,-2])
+    >>> absMin([3,-10,-2])
     -2
     """
     j = x[0]
@@ -13,9 +14,11 @@ def absMin(x):
             j = i
     return j
 
+
 def main():
     a = [-3,-1,2,-11]
     print(absMin(a))  # = -1
 
+
 if __name__ == '__main__':
     main()
\ No newline at end of file
diff --git a/maths/binary_exponentiation.py b/maths/binary_exponentiation.py
index cf789afc6f22..a8d736adfea0 100644
--- a/maths/binary_exponentiation.py
+++ b/maths/binary_exponentiation.py
@@ -17,11 +17,12 @@ def binary_exponentiation(a, n):
         return b * b
 
 
-try:
-    BASE = int(input('Enter Base : '))
-    POWER = int(input("Enter Power : "))
-except ValueError:
-    print("Invalid literal for integer")
-
-RESULT = binary_exponentiation(BASE, POWER)
-print("{}^({}) : {}".format(BASE, POWER, RESULT))
+if __name__ == "__main__":
+    try:
+        BASE = int(input("Enter Base : ").strip())
+        POWER = int(input("Enter Power : ").strip())
+    except ValueError:
+        print("Invalid literal for integer")
+
+    RESULT = binary_exponentiation(BASE, POWER)
+    print("{}^({}) : {}".format(BASE, POWER, RESULT))
diff --git a/maths/lucas series.py b/maths/lucas series.py
deleted file mode 100644
index 91ea1ba72a56..000000000000
--- a/maths/lucas series.py	
+++ /dev/null
@@ -1,13 +0,0 @@
-# Lucas Sequence Using Recursion
-
-def recur_luc(n):
-  if n == 1:
-    return n
-  if n == 0:
-    return 2
-  return (recur_luc(n-1) + recur_luc(n-2))
-    
-limit = int(input("How many terms to include in Lucas series:"))
-print("Lucas series:")
-for i in range(limit):
-  print(recur_luc(i))
diff --git a/maths/lucas_series.py b/maths/lucas_series.py
new file mode 100644
index 000000000000..04312f2fb78b
--- /dev/null
+++ b/maths/lucas_series.py
@@ -0,0 +1,14 @@
+# Lucas Sequence Using Recursion
+
+def recur_luc(n):
+  if n == 1:
+    return n
+  if n == 0:
+    return 2
+  return (recur_luc(n-1) + recur_luc(n-2))
+
+if __name__ == "__main__":
+  limit = int(input("How many terms to include in Lucas series:").strip())
+  print("Lucas series:")
+  for i in range(limit):
+    print(recur_luc(i))
diff --git a/maths/sieve_of_eratosthenes.py b/maths/sieve_of_eratosthenes.py
index 11c123693694..cedd04f92aa0 100644
--- a/maths/sieve_of_eratosthenes.py
+++ b/maths/sieve_of_eratosthenes.py
@@ -2,9 +2,6 @@
 
 import math
 
-N = int(input("Enter n: "))
-
-
 def sieve(n):
     """Sieve of Eratosthones."""
     l = [True] * (n + 1)
@@ -26,4 +23,5 @@ def sieve(n):
     return prime
 
 
-print(sieve(N))
+if __name__ == "__main__":
+    print(sieve(int(input("Enter n: ").strip())))

From 6ebf7be90b73f45b60b74222ea6b53793835778d Mon Sep 17 00:00:00 2001
From: John Law <johnlaw.po@gmail.com>
Date: Sun, 21 Jul 2019 00:47:29 +0800
Subject: [PATCH 2/3] Update lucas_series.py

---
 maths/lucas_series.py | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/maths/lucas_series.py b/maths/lucas_series.py
index 9d9954aafd50..22ad893a6567 100644
--- a/maths/lucas_series.py
+++ b/maths/lucas_series.py
@@ -3,11 +3,11 @@
 
 def recur_luc(n):
     """
-  >>> recur_luc(1)
-  1
-  >>> recur_luc(0)
-  2
-  """
+    >>> recur_luc(1)
+    1
+    >>> recur_luc(0)
+    2
+    """
     if n == 1:
         return n
     if n == 0:

From 7996f34d6d2f2b67d782b04234d417ce2c170762 Mon Sep 17 00:00:00 2001
From: John Law <johnlaw.po@gmail.com>
Date: Sun, 21 Jul 2019 00:47:51 +0800
Subject: [PATCH 3/3] Update lucas_series.py

---
 maths/lucas_series.py | 1 -
 1 file changed, 1 deletion(-)

diff --git a/maths/lucas_series.py b/maths/lucas_series.py
index 22ad893a6567..9ae437dc9f54 100644
--- a/maths/lucas_series.py
+++ b/maths/lucas_series.py
@@ -1,6 +1,5 @@
 # Lucas Sequence Using Recursion
 
-
 def recur_luc(n):
     """
     >>> recur_luc(1)