diff --git a/src/.idea/.gitignore b/src/.idea/.gitignore
new file mode 100644
index 0000000000..5c98b42884
--- /dev/null
+++ b/src/.idea/.gitignore
@@ -0,0 +1,2 @@
+# Default ignored files
+/workspace.xml
\ No newline at end of file
diff --git a/src/.idea/inspectionProfiles/profiles_settings.xml b/src/.idea/inspectionProfiles/profiles_settings.xml
new file mode 100644
index 0000000000..105ce2da2d
--- /dev/null
+++ b/src/.idea/inspectionProfiles/profiles_settings.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/src/.idea/misc.xml b/src/.idea/misc.xml
new file mode 100644
index 0000000000..6649a8c6e4
--- /dev/null
+++ b/src/.idea/misc.xml
@@ -0,0 +1,7 @@
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/src/.idea/modules.xml b/src/.idea/modules.xml
new file mode 100644
index 0000000000..f669a0e594
--- /dev/null
+++ b/src/.idea/modules.xml
@@ -0,0 +1,8 @@
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/src/.idea/src.iml b/src/.idea/src.iml
new file mode 100644
index 0000000000..8b8c395472
--- /dev/null
+++ b/src/.idea/src.iml
@@ -0,0 +1,12 @@
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/src/.idea/vcs.xml b/src/.idea/vcs.xml
new file mode 100644
index 0000000000..6c0b863585
--- /dev/null
+++ b/src/.idea/vcs.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/src/00_hello.py b/src/00_hello.py
index 268998dfc7..a2f00d41ec 100644
--- a/src/00_hello.py
+++ b/src/00_hello.py
@@ -1 +1,3 @@
-# Print "Hello, world!" to your terminal
\ No newline at end of file
+# Print "Hello, world!" to your terminal
+
+print("Hello, World!")
\ No newline at end of file
diff --git a/src/01_bignum.py b/src/01_bignum.py
index c020928d63..0347ae3f4b 100644
--- a/src/01_bignum.py
+++ b/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
\ No newline at end of file
+# YOUR CODE HERE
+print(2**65536)
\ No newline at end of file
diff --git a/src/02_datatypes.py b/src/02_datatypes.py
index 245193da34..7d7a3e1966 100644
--- a/src/02_datatypes.py
+++ b/src/02_datatypes.py
@@ -12,10 +12,10 @@
y = "7"
# Write a print statement that combines x + y into the integer value 12
-
+print(x+int(y))
# YOUR CODE HERE
# Write a print statement that combines x + y into the string value 57
-
+print(f"{str(x)}{y}")
# YOUR CODE HERE
\ No newline at end of file
diff --git a/src/03_modules.py b/src/03_modules.py
index 97eba053c7..32b22563a7 100644
--- a/src/03_modules.py
+++ b/src/03_modules.py
@@ -6,26 +6,34 @@
"""
import sys
+import os
# 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[1:]:
+ print(arg)
# Print out the OS platform you're using:
# YOUR CODE HERE
+print(f"Operating system: {os.name}")
+
# Print out the version of Python you're using:
# YOUR CODE HERE
+print(f"Python Version: {sys.version}")
-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(f"Process ID: {os.getpid()}")
# Print the current working directory (cwd):
# YOUR CODE HERE
+print(f"Current directory: {os.getcwd()}")
# Print out your machine's login name
# YOUR CODE HERE
+print(f"Machine Login: {os.getlogin()}")
diff --git a/src/04_printing.py b/src/04_printing.py
index 06aaa7ff16..990c0b0428 100644
--- a/src/04_printing.py
+++ b/src/04_printing.py
@@ -11,7 +11,10 @@
# 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" % (10, 2.25, "I like turtles!"))
# Use the 'format' string method to print the same thing
+print("x is {}, y is {}, z is {}".format(10, 2.25, "I like turtles!"))
-# Finally, print the same thing using an f-string
\ No newline at end of file
+# Finally, print the same thing using an f-string
+print(f"x is {10}, y is {2.25}, z is I like turtles!")
\ No newline at end of file
diff --git a/src/05_lists.py b/src/05_lists.py
index cfccc4e945..f928832e1e 100644
--- a/src/05_lists.py
+++ b/src/05_lists.py
@@ -7,23 +7,30 @@
# For the following, DO NOT USE AN ASSIGNMENT (=).
# Change x so that it is [1, 2, 3, 4]
+x.append(4)
# YOUR CODE HERE
print(x)
# Using y, change x so that it is [1, 2, 3, 4, 8, 9, 10]
+x.extend(y)
# YOUR CODE HERE
print(x)
# Change x so that it is [1, 2, 3, 4, 9, 10]
+x.remove(8)
# YOUR CODE HERE
print(x)
# Change x so that it is [1, 2, 3, 4, 9, 99, 10]
+x.insert(5, 99)
# YOUR CODE HERE
print(x)
# Print the length of list x
# YOUR CODE HERE
+print(len(x))
# Print all the values in x multiplied by 1000
+for y in x:
+ print(y*1000)
# YOUR CODE HERE
\ No newline at end of file
diff --git a/src/06_tuples.py b/src/06_tuples.py
index 36754da73b..2780cac3ca 100644
--- a/src/06_tuples.py
+++ b/src/06_tuples.py
@@ -17,28 +17,32 @@
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)
+ return math.sqrt((x1 - x0) ** 2 + (y1 - y0) ** 2)
+
-a = (2, 7) # <-- x,y coordinates stored in tuples
+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 tuplet in x:
+ print(tuplet)
+
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)
diff --git a/src/07_slices.py b/src/07_slices.py
index 5e0b3bd8ee..3e5768644e 100644
--- a/src/07_slices.py
+++ b/src/07_slices.py
@@ -12,26 +12,26 @@
a = [2, 4, 1, 7, 9, 6]
# Output the second element: 4:
-print()
+print(a[1:2])
# Output the second-to-last element: 9
-print()
+print(a[-2:-1])
# 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[:-1])
# For string s...
s = "Hello, world!"
# Output just the 8th-12th characters: "world"
-print()
\ No newline at end of file
+print(s[7:12])
\ No newline at end of file
diff --git a/src/08_comprehensions.py b/src/08_comprehensions.py
index 67eb742e50..11f3862349 100644
--- a/src/08_comprehensions.py
+++ b/src/08_comprehensions.py
@@ -10,14 +10,14 @@
# Write a list comprehension to produce the array [1, 2, 3, 4, 5]
-y = []
+y = [x for x in range(1,6)]
-print (y)
+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 = [x**3 for x in range (0,10)]
print(y)
@@ -26,7 +26,7 @@
a = ["foo", "bar", "baz"]
-y = []
+y = [x.upper() for x in a]
print(y)
@@ -36,6 +36,6 @@
x = input("Enter comma-separated numbers: ").split(',')
# What do you need between the square brackets to make it work?
-y = []
+y = [eve for eve in x if int(eve) % 2 == 0]
print(y)
\ No newline at end of file
diff --git a/src/09_dictionaries.py b/src/09_dictionaries.py
index a8b2911f64..16488e788e 100644
--- a/src/09_dictionaries.py
+++ b/src/09_dictionaries.py
@@ -35,6 +35,13 @@
# Add a new waypoint to the list
# YOUR CODE HERE
+x = {
+ "lat": 55,
+ "lon": -132,
+ "name": "a fourth place"
+}
+
+waypoints.append(x)
# Modify the dictionary with name "a place" such that its longitude
# value is -130 and change its name to "not a real place"
@@ -42,6 +49,15 @@
# waypoints list.
# YOUR CODE HERE
+replacement = {'lon': -130,
+ 'name': 'not a real place'
+ }
+
+waypoints[0].update(replacement)
+
# Write a loop that prints out all the field values for all the waypoints
-# YOUR CODE HERE
\ No newline at end of file
+# YOUR CODE HERE
+for dicts in waypoints:
+ for key, value in dicts.items():
+ print(f"{key}\'s value: {value}")
diff --git a/src/10_functions.py b/src/10_functions.py
index 5830100c2c..e50707a62b 100644
--- a/src/10_functions.py
+++ b/src/10_functions.py
@@ -2,11 +2,28 @@
# YOUR CODE HERE
+
+def is_even(x):
+ if x % 2 == 0:
+ return True
+ else:
+ return False
+
+
# 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
+def tester(x):
+ test_even = is_even(x)
+
+ if test_even:
+ print("Even!")
+ else:
+ print("Odd")
+tester(num)
\ No newline at end of file
diff --git a/src/11_args.py b/src/11_args.py
index 8c467ea47f..28c4948f2a 100644
--- a/src/11_args.py
+++ b/src/11_args.py
@@ -5,24 +5,31 @@
# the sum. This is what you'd consider to be a regular, normal function.
# YOUR CODE HERE
+def f1(x, y):
+ return x + y
+
print(f1(1, 2))
# Write a function f2 that takes any number of integer arguments and returns the
+
# sum.
# Note: Google for "python arbitrary arguments" and look for "*args"
-
# YOUR CODE HERE
+def f2(*argv):
+ return sum(arg for arg in argv)
+
-print(f2(1)) # Should print 1
-print(f2(1, 3)) # Should print 4
-print(f2(1, 4, -12)) # Should print -7
+print(f2(1)) # Should print 1
+print(f2(1, 3)) # Should print 4
+print(f2(1, 4, -12)) # Should print -7
print(f2(7, 9, 1, 3, 4, 9, 0)) # Should print 33
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
@@ -30,9 +37,12 @@
# Note: Google "python default arguments" for a hint.
# YOUR CODE HERE
+def f3(x, y=1):
+ return x + y
+
print(f3(1, 2)) # Should print 3
-print(f3(8)) # Should print 9
+print(f3(8)) # Should print 9
# Write a function f4 that accepts an arbitrary number of keyword arguments and
@@ -44,6 +54,10 @@
# Note: Google "python keyword arguments".
# YOUR CODE HERE
+def f4(**kwargs):
+ for key, value in kwargs.items():
+ print(f'key:{key}, value:{value}')
+
# Should print
# key: a, value: 12
@@ -62,4 +76,4 @@
}
# How do you have to modify the f4 call below to make this work?
-f4(d)
+f4(**d)
diff --git a/src/12_scopes.py b/src/12_scopes.py
index bc467fa423..ab1e84ed51 100644
--- a/src/12_scopes.py
+++ b/src/12_scopes.py
@@ -4,13 +4,17 @@
# When you use a variable in a function, it's local in scope to the function.
x = 12
+
def change_x():
x = 99
+ print(x)
+
change_x()
+
# This prints 12. What do we have to modify in change_x() to get it to print 99?
-print(x)
+# print(x)
# This nested function has a similar problem.
@@ -20,7 +24,7 @@ def outer():
def inner():
y = 999
-
+ print(y)
inner()
# This prints 120. What do we have to change in inner() to get it to print
diff --git a/src/13_file_io.py b/src/13_file_io.py
index 3c68f8aba2..32339e0cef 100644
--- a/src/13_file_io.py
+++ b/src/13_file_io.py
@@ -11,9 +11,33 @@
# YOUR CODE HERE
+with open('foo.txt', 'r') as f:
+ print(f.read())
+
+
# 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
\ No newline at end of file
+# YOUR CODE HERE
+# write three random lines
+text = """
+Hi there.
+Hi.
+Bye."""
+
+# open bar.txt (new)
+with open('bar.txt', 'w') as f:
+
+ f.write(text)
+
+ # close file
+ f.close()
+
+
+# open file
+with open('bar.txt', 'r') as f:
+ # read file
+ print(f.read())
+
diff --git a/src/14_cal.py b/src/14_cal.py
index 30bb10d113..31a80745a9 100644
--- a/src/14_cal.py
+++ b/src/14_cal.py
@@ -29,4 +29,18 @@
import sys
import calendar
-from datetime import datetime
\ No newline at end of file
+from datetime import datetime
+
+
+def program(month=5, year=2020):
+ calendar.prmonth(year, month)
+
+
+if len(sys.argv) == 1:
+ program()
+elif len(sys.argv) == 2:
+ program(int(sys.argv[1]))
+elif len(sys.argv) == 3:
+ program(int(sys.argv[1]), int(sys.argv[2]))
+else:
+ print("Unexpected input. Expected input: 14_cal.py [month] [year]")
diff --git a/src/15_classes.py b/src/15_classes.py
index 2355dd20b7..c267af5c7c 100644
--- a/src/15_classes.py
+++ b/src/15_classes.py
@@ -1,29 +1,52 @@
# Make a class LatLon that can be passed parameters `lat` and `lon` to the
# constructor
-
# YOUR CODE HERE
+class LatLon:
+ def __init__(self, lat, lon):
+ self.lat = lat
+ self.lon = lon
+
# Make a class Waypoint that can be passed parameters `name`, `lat`, and `lon` to the
# constructor. It should inherit from LatLon. Look up the `super` method.
# YOUR CODE HERE
+class Waypoint(LatLon):
+ def __init__(self, name, lat, lon):
+ super().__init__(lat, lon)
+ self.name = name
+
+ def __str__(self):
+ return f'A Waypoint named {self.name} at latitude {self.lat} and longitude {self.lon}'
+
# Make a class Geocache that can be passed parameters `name`, `difficulty`,
# `size`, `lat`, and `lon` to the constructor. What should it inherit from?
# YOUR CODE HERE
+class Geocache(Waypoint):
+ def __init__(self, name, difficulty, size, lat, lon):
+ super().__init__(name, lat, lon)
+ self.difficulty = difficulty
+ self.size = size
+
+ def __str__(self):
+ return f'A Geocache named {self.name} with a difficulty of {self.difficulty}, a size of {self.size} at latitude {self.lat} and longitude {self.lon}'
+
# Make a new waypoint and print it out: "Catacombs", 41.70505, -121.51521
# YOUR CODE HERE
+x = Waypoint('Catacombs', 41.70505, -121-51521)
# Without changing the following line, how can you make it print into something
# more human-readable? Hint: Look up the `object.__str__` method
-print(waypoint)
+print(x)
# Make a new geocache "Newberry Views", diff 1.5, size 2, 44.052137, -121.41556
# YOUR CODE HERE
+y = Geocache('Newberry Views', 1.5, 2, 44.052137, -121.41556)
# Print it--also make this print more nicely
-print(geocache)
+print(y)
diff --git a/src/bar.txt b/src/bar.txt
new file mode 100644
index 0000000000..bec719689f
--- /dev/null
+++ b/src/bar.txt
@@ -0,0 +1,4 @@
+
+Hi there.
+Hi.
+Bye.
\ No newline at end of file