Merge pull request #1 from MaryamMosstoufi/maryam-mosstoufi

Maryam Mosstoufi

src/00_hello.py

@@ -1 +1,2 @@
-# Print "Hello, world!" to your terminal
+# Print "Hello, world!" to your terminal
+print("Hello, world!")

src/01_bignum.py

@@ -1,4 +1,5 @@
 # Print out 2 to the 65536 power
 # (try doing the same thing in the JS console and see what it outputs)
 
-# YOUR CODE HERE
+# YOUR CODE HERE
+print(2**65536)

src/02_datatypes.py

@@ -14,8 +14,9 @@
 # Write a print statement that combines x + y into the integer value 12
 
 # YOUR CODE HERE
-
+print(x + int(y))
 
 # Write a print statement that combines x + y into the string value 57
 
-# YOUR CODE HERE
+# YOUR CODE HERE
+print(str(x) + y)

src/03_modules.py

@@ -5,27 +5,30 @@
 level operating system functionality.
 """
 
+import os
 import sys
 # See docs for the sys module: https://docs.python.org/3.7/library/sys.html
 
 # Print out the command line arguments in sys.argv, one per line:
 # YOUR CODE HERE
+for arg in sys.argv:
+    print(arg, end='\n')
 
 # Print out the OS platform you're using:
 # YOUR CODE HERE
-
+print("Platform: ", sys.platform)
 # Print out the version of Python you're using:
 # YOUR CODE HERE
+print("Python Version: ", sys.version_info)
 
-
-import os
 # See the docs for the OS module: https://docs.python.org/3.7/library/os.html
 
 # Print the current process ID
 # YOUR CODE HERE
-
+print("Process ID: ",  os.getpid())
 # Print the current working directory (cwd):
 # YOUR CODE HERE
-
+print("CWD: ", os.getcwd())
 # Print out your machine's login name
 # YOUR CODE HERE
+print("Login Name : ", os.getlogin())

src/04_printing.py

@@ -11,7 +11,8 @@
 # Using the printf operator (%), print the following feeding in the values of x,
 # y, and z:
 # x is 10, y is 2.25, z is "I like turtles!"
-
+print("x is %d, y is %f, z is %s!" % (x, round(y, 2), z))
 # Use the 'format' string method to print the same thing
-
-# Finally, print the same thing using an f-string
+print(("x is {}, y is {}, z is {}!").format(x, round(y, 2), z))
+# Finally, print the same thing using an f-string
+print(f"x is {x}, y is {round(y, 2)}, z is {z}!")

src/05_lists.py

@@ -8,22 +8,26 @@
 
 # Change x so that it is [1, 2, 3, 4]
 # YOUR CODE HERE
+x.append(4)
 print(x)
 
 # Using y, change x so that it is [1, 2, 3, 4, 8, 9, 10]
 # YOUR CODE HERE
-print(x)
+print(x + y)
 
 # Change x so that it is [1, 2, 3, 4, 9, 10]
 # YOUR CODE HERE
+x.extend([9, 10])
 print(x)
 
 # Change x so that it is [1, 2, 3, 4, 9, 99, 10]
 # YOUR CODE HERE
+x.insert(5, 99)
 print(x)
 
 # Print the length of list x
 # YOUR CODE HERE
-
+print(len(x))
 # Print all the values in x multiplied by 1000
-# YOUR CODE HERE
+# YOUR CODE HERE
+print([num*1000 for num in x])

src/06_tuples.py

@@ -17,28 +17,33 @@
 
 import math
 
+
 def dist(a, b):
     """Compute the distance between two x,y points."""
     x0, y0 = a  # Destructuring assignment
     x1, y1 = b
 
     return math.sqrt((x1 - x0)**2 + (y1 - y0)**2)
 
+
 a = (2, 7)   # <-- x,y coordinates stored in tuples
 b = (-14, 72)
 
 # Prints "Distance is 66.94"
 print("Distance is: {:.2f}".format(dist(a, b)))
 
 
-
 # Write a function `print_tuple` that prints all the values in a tuple
 
 # YOUR CODE HERE
+def print_tuple(x):
+    for item in x:
+        print(item)
+
 
 t = (1, 2, 5, 7, 99)
 print_tuple(t)  # Prints 1 2 5 7 99, one per line
 
 # Declare a tuple of 1 element then print it
-u = (1)  # What needs to be added to make this work?
+u = (1,)  # What needs to be added to make this work?
 print_tuple(u)

src/07_slices.py

@@ -12,26 +12,26 @@
 a = [2, 4, 1, 7, 9, 6]
 
 # Output the second element: 4:
-print()
+print(a[1])
 
 # Output the second-to-last element: 9
-print()
+print(a[-2])
 
 # Output the last three elements in the array: [7, 9, 6]
-print()
+print(a[-3:])
 
 # Output the two middle elements in the array: [1, 7]
-print()
+print(a[2:4])
 
 # Output every element except the first one: [4, 1, 7, 9, 6]
-print()
+print(a[1:])
 
 # Output every element except the last one: [2, 4, 1, 7, 9]
-print()
+print(a[:-2])
 
 # For string s...
 
 s = "Hello, world!"
 
 # Output just the 8th-12th characters: "world"
-print()
+print(s[7:12])

src/08_comprehensions.py

@@ -2,22 +2,20 @@
 List comprehensions are one cool and unique feature of Python.
 They essentially act as a terse and concise way of initializing
 and populating a list given some expression that specifies how
-the list should be populated. 
+the list should be populated.
 
 Take a look at https://docs.python.org/3/tutorial/datastructures.html#list-comprehensions
 for more info regarding list comprehensions.
 """
 
 # Write a list comprehension to produce the array [1, 2, 3, 4, 5]
-
-y = []
-
-print (y)
+y = [i for i in range(1, 6)]
+print(y)
 
 # Write a list comprehension to produce the cubes of the numbers 0-9:
 # [0, 1, 8, 27, 64, 125, 216, 343, 512, 729]
 
-y = []
+y = [i**3 for i in range(10)]
 
 print(y)
 
@@ -26,7 +24,7 @@
 
 a = ["foo", "bar", "baz"]
 
-y = []
+y = [i.upper() for i in a]
 
 print(y)
 
@@ -36,6 +34,6 @@
 x = input("Enter comma-separated numbers: ").split(',')
 
 # What do you need between the square brackets to make it work?
-y = []
+y = [num for num in x if int(num) % 2 == 0]
 
-print(y)
+print(y)

src/09_dictionaries.py

@@ -35,13 +35,24 @@
 
 # Add a new waypoint to the list
 # YOUR CODE HERE
-
+waypoints.append({
+    "lat": 53,
+    "lon": -24,
+    "name": "my place"
+},)
+print(waypoints)
 # Modify the dictionary with name "a place" such that its longitude
 # value is -130 and change its name to "not a real place"
 # Note: It's okay to access the dictionary using bracket notation on the
 # waypoints list.
-
 # YOUR CODE HERE
+for place in waypoints:
+    if place["name"] == "a place":
+        place["lon"] = -130
+        place["name"] = "not a real place"
 
+print(waypoints)
 # Write a loop that prints out all the field values for all the waypoints
-# YOUR CODE HERE
+# YOUR CODE HERE
+for place in waypoints:
+    print(place)

src/10_functions.py

@@ -2,11 +2,19 @@
 
 # YOUR CODE HERE
 
+def is_even(x):
+    if x % 2 == 0:
+        return True
+
+
 # Read a number from the keyboard
 num = input("Enter a number: ")
 num = int(num)
 
 # Print out "Even!" if the number is even. Otherwise print "Odd"
 
 # YOUR CODE HERE
-
+if is_even(num):
+    print("Even!")
+else:
+    print("Odd!")

src/11_args.py

@@ -5,6 +5,9 @@
 # the sum. This is what you'd consider to be a regular, normal function.
 
 # YOUR CODE HERE
+def f1(a, b):
+    return a+b
+
 
 print(f1(1, 2))
 
@@ -14,6 +17,14 @@
 
 # YOUR CODE HERE
 
+
+def f2(*x):
+    sum = 0
+    for each in x:
+        sum = sum + each
+    return sum
+
+
 print(f2(1))                    # Should print 1
 print(f2(1, 3))                 # Should print 4
 print(f2(1, 4, -12))            # Should print -7
@@ -22,7 +33,7 @@
 a = [7, 6, 5, 4]
 
 # How do you have to modify the f2 call below to make this work?
-print(f2(a))    # Should print 22
+print(f2(*a))    # Should print 22
 
 # Write a function f3 that accepts either one or two arguments. If one argument,
 # it returns that value plus 1. If two arguments, it returns the sum of the
@@ -31,6 +42,14 @@
 
 # YOUR CODE HERE
 
+
+def f3(*x):
+    if len(x) == 1:
+        return x[0] + 1
+    else:
+        return x[0]+x[1]
+
+
 print(f3(1, 2))  # Should print 3
 print(f3(8))     # Should print 9
 
@@ -44,6 +63,10 @@
 # Note: Google "python keyword arguments".
 
 # YOUR CODE HERE
+def f4(**data):
+    for key, value in data.items():
+        print("key: {}, value: {}".format(key, value))
+
 
 # Should print
 # key: a, value: 12
@@ -62,4 +85,4 @@
 }
 
 # How do you have to modify the f4 call below to make this work?
-f4(d)
+f4(**d)

src/12_scopes.py

@@ -4,9 +4,12 @@
 # When you use a variable in a function, it's local in scope to the function.
 x = 12
 
+
 def change_x():
+    global x
     x = 99
 
+
 change_x()
 
 # This prints 12. What do we have to modify in change_x() to get it to print 99?
@@ -19,6 +22,7 @@ def outer():
     y = 120
 
     def inner():
+        nonlocal y
         y = 999
 
     inner()

src/13_file_io.py

@@ -10,10 +10,21 @@
 # Note: pay close attention to your current directory when trying to open "foo.txt"
 
 # YOUR CODE HERE
-
+with open("foo.txt") as f:
+    for i in f:
+        print(i)
 # Open up a file called "bar.txt" (which doesn't exist yet) for
 # writing. Write three lines of arbitrary content to that file,
 # then close the file. Open up "bar.txt" and inspect it to make
 # sure that it contains what you expect it to contain
 
-# YOUR CODE HERE
+# YOUR CODE HERE
+with open("bar.txt", 'w') as b:
+    b.write("line one \n")
+    b.write("line two \n")
+    b.write("line three \n")
+    b.close()
+
+# c = open("foo.txt", "w")
+# c.write("something")
+# c.close()