diff --git a/active_projects/eop/bayes_footnote.py b/active_projects/eop/bayes_footnote.py
index 841ad8a2..d7fbdbe0 100644
--- a/active_projects/eop/bayes_footnote.py
+++ b/active_projects/eop/bayes_footnote.py
@@ -1,6 +1,6 @@
 from big_ol_pile_of_manim_imports import *
 
-from eop.bayes import IntroducePokerHand
+from active_projects.eop.bayes import IntroducePokerHand
 
 SICKLY_GREEN = "#9BBD37"
 
@@ -1362,7 +1362,7 @@ class CompareNumbersInBothExamples(Scene):
                 "\\text{Not }", "\\text{%s}"%s2, ")",
                 "=", "1/100"
             )
-            for s1, s2 in ("+", "Sick"), ("Correct", "Powers")
+            for s1, s2 in [("+", "Sick"), ("Correct", "Powers")]
         ])
         priors.next_to(likelihoods, UP, LARGE_BUFF)
         for group in priors, likelihoods:
diff --git a/active_projects/eop/chapter1/million_flips.py b/active_projects/eop/chapter1/million_flips.py
index 0a4282c5..5e98f4a0 100644
--- a/active_projects/eop/chapter1/million_flips.py
+++ b/active_projects/eop/chapter1/million_flips.py
@@ -65,7 +65,7 @@ class MillionFlips(Scene):
             coins.replace, hundred_boxes[0]
         )
         hundred_boxes[0].add(coins)
-        for box, prop in zip(hundred_boxes, proportions)[1:]:
+        for box, prop in list(zip(hundred_boxes, proportions))[1:]:
             self.add(box)
             self.increment(n_flips_count, 100)
             self.increment(n_heads_count, int(np.round(prop * 100)))
@@ -77,7 +77,7 @@ class MillionFlips(Scene):
             hundred_boxes.replace, ten_k_boxes[0]
         )
         ten_k_boxes[0].add(hundred_boxes)
-        for box, prop in zip(ten_k_boxes, ten_k_proportions)[1:]:
+        for box, prop in list(zip(ten_k_boxes, ten_k_proportions))[1:]:
             self.add(box)
             self.increment(n_flips_count, 10000)
             self.increment(n_heads_count, int(np.round(prop * 10000)))
diff --git a/active_projects/eop/combinations.py b/active_projects/eop/combinations.py
index d2ebc580..d7fa056b 100644
--- a/active_projects/eop/combinations.py
+++ b/active_projects/eop/combinations.py
@@ -1783,7 +1783,7 @@ class IntroducePascalsTriangle(Scene):
             mob.rect = SurroundingRectangle(mob, color = color)
             rects.add(mob.rect)
 
-        rows_to_fade = VGroup(*rows[1:4] + rows[6:])
+        rows_to_fade = VGroup(*rows[1:4], *rows[6:])
         rows_to_fade.save_state()
 
         top_row = rows[4]
diff --git a/active_projects/eop/independence.py b/active_projects/eop/independence.py
index 5003db5b..2ab78550 100644
--- a/active_projects/eop/independence.py
+++ b/active_projects/eop/independence.py
@@ -1515,7 +1515,7 @@ class ShowAllEightConditionals(Scene):
         equations.arrange_submobjects(DOWN)
 
         rect = SurroundingRectangle(
-            VGroup(*equations[0][7:]+equations[-1][7:]),
+            VGroup(*equations[0][7:], *equations[-1][7:]),
             buff = SMALL_BUFF
         )
         rect.shift(0.5*SMALL_BUFF*RIGHT)
@@ -1845,7 +1845,7 @@ class ShowFullDistribution(Scene):
         self.play(Transform(self.bar_chart, alt_charts[0]))
         self.wait()
         self.play(FadeOut(point_5_probs))
-        for rhs, chart in zip(alt_rhss, alt_charts)[1:]:
+        for rhs, chart in list(zip(alt_rhss, alt_charts))[1:]:
             self.play(Transform(new_prob[-1], rhs))
             self.play(Transform(self.bar_chart, chart))
             self.wait(2)
diff --git a/mobject/svg/tex_mobject.py b/mobject/svg/tex_mobject.py
index e376e897..2fc855ac 100644
--- a/mobject/svg/tex_mobject.py
+++ b/mobject/svg/tex_mobject.py
@@ -158,6 +158,7 @@ class TexMobject(SingleStringTexMobject):
         split_list = split_string_list_to_isolate_substring(
             tex_strings, *substrings_to_isolate
         )
+        split_list = [item for sublist in split_list for item in sublist]
         split_list = list(map(str.strip, split_list))
         split_list = [s for s in split_list if s != '']
         return split_list
diff --git a/old_projects/alt_calc.py b/old_projects/alt_calc.py
index 4e505573..c3e93059 100644
--- a/old_projects/alt_calc.py
+++ b/old_projects/alt_calc.py
@@ -2209,7 +2209,7 @@ class GraphOnePlusOneOverX(GraphScene):
                 x_max=x_max,
                 color=self.func_graph_color,
             )
-            for x_min, x_max in (-10, -0.1), (0.1, 10)
+            for x_min, x_max in [(-10, -0.1), (0.1, 10)]
         ])
         func_graph.label = self.get_graph_label(
             upper_func_graph, "y = 1 + \\frac{1}{x}",
diff --git a/old_projects/brachistochrone/misc.py b/old_projects/brachistochrone/misc.py
index 812f8f96..ea54e5ee 100644
--- a/old_projects/brachistochrone/misc.py
+++ b/old_projects/brachistochrone/misc.py
@@ -2,7 +2,7 @@ import numpy as np
 import itertools as it
 
 from big_ol_pile_of_manim_imports import *
-from brachistochrone.curves import Cycloid
+from old_projects.brachistochrone.curves import Cycloid
 
 class PhysicalIntuition(Scene):
     def construct(self):
diff --git a/old_projects/brachistochrone/multilayered.py b/old_projects/brachistochrone/multilayered.py
index 273511aa..bd584456 100644
--- a/old_projects/brachistochrone/multilayered.py
+++ b/old_projects/brachistochrone/multilayered.py
@@ -2,8 +2,8 @@ import numpy as np
 import itertools as it
 
 from big_ol_pile_of_manim_imports import *
-from brachistochrone.light import PhotonScene
-from brachistochrone.curves import *
+from old_projects.brachistochrone.light import PhotonScene
+from old_projects.brachistochrone.curves import *
 
 
 class MultilayeredScene(Scene):
diff --git a/old_projects/brachistochrone/wordplay.py b/old_projects/brachistochrone/wordplay.py
index ca49a7fe..cf11bd24 100644
--- a/old_projects/brachistochrone/wordplay.py
+++ b/old_projects/brachistochrone/wordplay.py
@@ -3,7 +3,7 @@ import itertools as it
 import os
 
 from big_ol_pile_of_manim_imports import *
-from brachistochrone.drawing_images import sort_by_color
+from old_projects.brachistochrone.drawing_images import sort_by_color
 
 class Intro(Scene):
     def construct(self):
diff --git a/old_projects/crypto.py b/old_projects/crypto.py
index 4fd62b93..b8e9afbe 100644
--- a/old_projects/crypto.py
+++ b/old_projects/crypto.py
@@ -14,7 +14,7 @@ def get_cursive_name(name):
     return result
 
 def sha256_bit_string(message):
-    hexdigest = sha256(message).hexdigest()
+    hexdigest = sha256(message.encode('utf-8')).hexdigest()
     return bin(int(hexdigest, 16))[2:]
 
 def bit_string_to_mobject(bit_string):
@@ -2316,7 +2316,7 @@ class YouListeningToBroadcasts(LedgerScene):
         self.remove(self.ledger)
         corners = [
             FRAME_X_RADIUS*RIGHT*u1 + FRAME_Y_RADIUS*UP*u2
-            for u1, u2 in (-1, 1), (1, 1), (-1, -1)
+            for u1, u2 in [(-1, 1), (1, 1), (-1, -1)]
         ]
         you = self.you
         you.scale(2)
@@ -5011,7 +5011,7 @@ class ShowManyExchanges(Scene):
                 path_arc = np.pi,
                 buff = MED_LARGE_BUFF
             )
-            for p1, p2 in (LEFT, RIGHT), (RIGHT, LEFT)
+            for p1, p2 in [(LEFT, RIGHT), (RIGHT, LEFT)]
         ]).set_color(WHITE)
         exchanges = VGroup(*[
             VGroup(*[
diff --git a/old_projects/div_curl.py b/old_projects/div_curl.py
index 27ec77c5..ffec9a96 100644
--- a/old_projects/div_curl.py
+++ b/old_projects/div_curl.py
@@ -272,7 +272,7 @@ class StreamLines(VGroup):
                 if get_norm(last_point) > self.cutoff_norm:
                     break
             line = VMobject()
-            step = max(1, len(points) / self.n_anchors_per_line)
+            step = max(1, int(len(points) / self.n_anchors_per_line))
             line.set_points_smoothly(points[::step])
             self.add(line)
 
diff --git a/old_projects/efvgt.py b/old_projects/efvgt.py
index 8923c564..d1591baf 100644
--- a/old_projects/efvgt.py
+++ b/old_projects/efvgt.py
@@ -2786,7 +2786,7 @@ class DihedralCubeHomomorphism(GroupOfCubeSymmetries, SymmetriesOfSquare):
                     in_place = True,
                     run_time = abs(angle/(np.pi/2))
                 )
-                for mob, axis in (square, raw_axis), (cube, posed_axis)
+                for mob, axis in [(square, raw_axis), (cube, posed_axis)]
             ])
             self.wait()
             if i == 2:
diff --git a/old_projects/eoc/chapter1.py b/old_projects/eoc/chapter1.py
index ac1a60b6..f0940d16 100644
--- a/old_projects/eoc/chapter1.py
+++ b/old_projects/eoc/chapter1.py
@@ -2326,7 +2326,7 @@ class PlayingTowardsDADX(AreaUnderParabola, ReconfigurableScene):
                 equation.get_part_by_tex(tex),
                 run_time = 2
             )
-            for mob, tex in (x_squared, f_tex), (dx, "dx"), (dA, "dA")
+            for mob, tex in [(x_squared, f_tex), (dx, "dx"), (dA, "dA")]
         ])
         self.play(Write(equation.get_part_by_tex("approx")))
         self.wait()
@@ -2361,7 +2361,7 @@ class PlayingTowardsDADX(AreaUnderParabola, ReconfigurableScene):
             Circle(color = color).replace(
                 mob, stretch = True
             ).scale_in_place(1.5)
-            for mob, color in (self.A_func, RED), (self.deriv_equation, GREEN)
+            for mob, color in [(self.A_func, RED), (self.deriv_equation, GREEN)]
         ]
         q_marks = TexMobject("???")
         q_marks.next_to(A_circle, UP)
diff --git a/old_projects/eoc/chapter10.py b/old_projects/eoc/chapter10.py
index 68394721..80cf6ddc 100644
--- a/old_projects/eoc/chapter10.py
+++ b/old_projects/eoc/chapter10.py
@@ -1789,7 +1789,7 @@ class HigherTermsDontMessUpLowerTerms(Scene):
                 path_arc = arc,
                 color = c.get_color()
             )
-            for c, arc in (c2, 0.9*np.pi), (c0, np.pi)
+            for c, arc in [(c2, 0.9*np.pi), (c0, np.pi)]
         ])
         no_affect_words = TextMobject(
             "Doesn't affect \\\\ previous terms"
diff --git a/old_projects/eoc/chapter3.py b/old_projects/eoc/chapter3.py
index 57e788e7..0acafad3 100644
--- a/old_projects/eoc/chapter3.py
+++ b/old_projects/eoc/chapter3.py
@@ -2085,11 +2085,11 @@ class SquareRootOfX(Scene):
                 stroke_width = 3
             ).shift(s.get_corner(corner))
             for corner, vect in [(DOWN+LEFT, RIGHT), (UP+RIGHT, DOWN)]
-            for s in square, bigger_square
+            for s in [square, bigger_square]
         ])
         little_braces = VGroup(*[
             Brace(VGroup(*line_pair), vect, buff = 0)
-            for line_pair, vect in (lines[:2], RIGHT), (lines[2:], DOWN)
+            for line_pair, vect in [(lines[:2], RIGHT), (lines[2:], DOWN)]
         ])
         for brace in little_braces:
             tex = brace.get_text("$d\\sqrt{x}$", buff = SMALL_BUFF)
diff --git a/old_projects/eoc/chapter8.py b/old_projects/eoc/chapter8.py
index fb2ba5cd..02a587d6 100644
--- a/old_projects/eoc/chapter8.py
+++ b/old_projects/eoc/chapter8.py
@@ -1919,7 +1919,7 @@ class FindAntiderivative(Antiderivative):
                 path_arc = -np.pi/6,
                 run_time = 2,
             )
-            for i, j in (0, 1), (1, 0), (1, 2)
+            for i, j in [(0, 1), (1, 0), (1, 2)]
         ])
         self.wait()
         self.play(FadeIn(third))
diff --git a/old_projects/eoc/footnote.py b/old_projects/eoc/footnote.py
index f6656c45..9cb572b5 100644
--- a/old_projects/eoc/footnote.py
+++ b/old_projects/eoc/footnote.py
@@ -634,7 +634,7 @@ class HowToReadNotation(GraphScene, ReconfigurableScene):
                     ddf_over_dx_squared.get_part_by_tex(tex),
                     path_arc = -np.pi/2,                    
                 )
-                for mob, tex in (self.ddf, "df"), (self.dx_squared, "dx")
+                for mob, tex in [(self.ddf, "df"), (self.dx_squared, "dx")]
             ]
         )
         self.wait(2)
diff --git a/old_projects/eola/chapter1.py b/old_projects/eola/chapter1.py
index 35202fdc..581ede6b 100644
--- a/old_projects/eola/chapter1.py
+++ b/old_projects/eola/chapter1.py
@@ -1,5 +1,5 @@
 from big_ol_pile_of_manim_imports import *
-from eola.chapter0 import UpcomingSeriesOfVidoes
+from old_projects.eola.chapter0 import UpcomingSeriesOfVidoes
 
 import random
 
diff --git a/old_projects/eola/chapter10.py b/old_projects/eola/chapter10.py
index e7cb25bd..c3abbd81 100644
--- a/old_projects/eola/chapter10.py
+++ b/old_projects/eola/chapter10.py
@@ -1,8 +1,8 @@
 from big_ol_pile_of_manim_imports import *
-from eola.chapter1 import plane_wave_homotopy
-from eola.chapter3 import ColumnsToBasisVectors
-from eola.chapter5 import get_det_text
-from eola.chapter9 import get_small_bubble
+from old_projects.eola.chapter1 import plane_wave_homotopy
+from old_projects.eola.chapter3 import ColumnsToBasisVectors
+from old_projects.eola.chapter5 import get_det_text
+from old_projects.eola.chapter9 import get_small_bubble
 
 
 class OpeningQuote(Scene):
@@ -309,7 +309,7 @@ class AllXAxisVectorsAreEigenvectors(ExampleTranformationScene):
         vectors = VGroup(*[
             self.add_vector(u*x*RIGHT, animate = False)
             for x in reversed(list(range(1, int(FRAME_X_RADIUS)+1)))
-            for u in -1, 1
+            for u in [-1, 1]
         ])
         vectors.set_color_by_gradient(YELLOW, X_COLOR)
         self.play(ShowCreation(vectors))
@@ -360,7 +360,7 @@ class FullSneakyEigenspace(ExampleTranformationScene):
         vectors = VGroup(*[
             self.add_vector(u*x*(LEFT+UP), animate = False)
             for x in reversed(np.arange(0.5, 5, 0.5))
-            for u in -1, 1
+            for u in [-1, 1]
         ])
         vectors.set_color_by_gradient(MAROON_B, YELLOW)
         words = TextMobject("Stretch by 2")
@@ -391,14 +391,14 @@ class NameEigenvectorsAndEigenvalues(ExampleTranformationScene):
         x_vectors = VGroup(*[
             self.add_vector(u*x*RIGHT, animate = False)
             for x in range(int(FRAME_X_RADIUS)+1, 0, -1)
-            for u in -1, 1
+            for u in [-1, 1]
         ])
         x_vectors.set_color_by_gradient(YELLOW, X_COLOR)
         self.remove(x_vectors)
         sneak_vectors = VGroup(*[
             self.add_vector(u*x*(LEFT+UP), animate = False)
             for x in np.arange(int(FRAME_Y_RADIUS), 0, -0.5)
-            for u in -1, 1
+            for u in [-1, 1]
         ])
         sneak_vectors.set_color_by_gradient(MAROON_B, YELLOW)
         self.remove(sneak_vectors)
@@ -1442,7 +1442,7 @@ class RevisitExampleTransformation(ExampleTranformationScene):
         vectors = VGroup(*[
             self.add_vector(u*x*(LEFT+UP), animate = False)
             for x in range(4, 0, -1)
-            for u in -1, 1
+            for u in [-1, 1]
         ])
         vectors.set_color_by_gradient(MAROON_B, YELLOW)
         vectors.save_state()
@@ -1635,7 +1635,7 @@ class ShearExample(RevisitExampleTransformation):
         vectors = VGroup(*[
             self.add_vector(u*x*RIGHT, animate = False)
             for x in range(int(FRAME_X_RADIUS)+1, 0, -1)
-            for u in -1, 1
+            for u in [-1, 1]
         ])
         vectors.set_color_by_gradient(YELLOW, X_COLOR)
         words = VGroup(
@@ -2110,9 +2110,9 @@ class ChangeToEigenBasis(ExampleTranformationScene):
             VGroup(*[
                 self.add_vector(u*x*vect, animate = False)
                 for x in range(num, 0, -1)
-                for u in -1, 1
+                for u in [-1, 1]
             ])
-            for vect, num in (RIGHT, 7), (UP+LEFT, 4)
+            for vect, num in [(RIGHT, 7), (UP+LEFT, 4)]
         ]
         x_vectors.set_color_by_gradient(YELLOW, X_COLOR)
         v_vectors.set_color_by_gradient(MAROON_B, YELLOW)
diff --git a/old_projects/eola/chapter11.py b/old_projects/eola/chapter11.py
index 42279fa7..8ccb53a6 100644
--- a/old_projects/eola/chapter11.py
+++ b/old_projects/eola/chapter11.py
@@ -1,9 +1,9 @@
 from big_ol_pile_of_manim_imports import *
-from eola.chapter1 import plane_wave_homotopy
-from eola.chapter3 import ColumnsToBasisVectors
-from eola.chapter5 import NameDeterminant, Blob
-from eola.chapter9 import get_small_bubble
-from eola.chapter10 import ExampleTranformationScene
+from old_projects.eola.chapter1 import plane_wave_homotopy
+from old_projects.eola.chapter3 import ColumnsToBasisVectors
+from old_projects.eola.chapter5 import NameDeterminant, Blob
+from old_projects.eola.chapter9 import get_small_bubble
+from old_projects.eola.chapter10 import ExampleTranformationScene
 
 class Student(PiCreature):
     CONFIG = {
@@ -505,7 +505,7 @@ class DeterminantAndEigenvectorDontCare(LinearTransformationScene):
             vectors = VGroup(*[
                 Vector(u*x*v)
                 for x in range(7, 0, -1)
-                for u in -1, 1
+                for u in [-1, 1]
             ])
             vectors.set_color_by_gradient(MAROON_A, MAROON_C)
             result += list(vectors)
diff --git a/old_projects/eola/chapter2.py b/old_projects/eola/chapter2.py
index d38cb905..a471f791 100644
--- a/old_projects/eola/chapter2.py
+++ b/old_projects/eola/chapter2.py
@@ -1,5 +1,5 @@
 from big_ol_pile_of_manim_imports import *
-from eola.chapter1 import plane_wave_homotopy
+from old_projects.eola.chapter1 import plane_wave_homotopy
 
 class OpeningQuote(Scene):
     def construct(self):
@@ -239,7 +239,7 @@ class ShowVaryingLinearCombinations(VectorScene):
         )
         label_anims = [
             MaintainPositionRelativeTo(label, v)
-            for v, label in (v1, v1_label), (v2, v2_label)
+            for v, label in [(v1, v1_label), (v2, v2_label)]
         ]
         scalar_anims = self.get_scalar_anims(v1, v2, v1_label, v2_label)
         self.last_scalar_pair = (1, 1)
@@ -270,13 +270,13 @@ class ShowVaryingLinearCombinations(VectorScene):
                 scale_factor = 0.75,
                 value_function = get_val_func(v)
             )
-            for v, label in (v1, v1_label), (v2, v2_label)
+            for v, label in [(v1, v1_label), (v2, v2_label)]
         ]
 
     def get_rate_func_pair(self):
         return [
             squish_rate_func(smooth, a, b) 
-            for a, b in (0, 0.7), (0.3, 1)
+            for a, b in [(0, 0.7), (0.3, 1)]
         ] 
 
     def initial_scaling(self, v1, v2, label_anims, scalar_anims):
diff --git a/old_projects/eola/chapter4.py b/old_projects/eola/chapter4.py
index 453fe4c5..aad7fd53 100644
--- a/old_projects/eola/chapter4.py
+++ b/old_projects/eola/chapter4.py
@@ -1,5 +1,5 @@
 from big_ol_pile_of_manim_imports import *
-from eola.chapter3 import MatrixVectorMultiplicationAbstract
+from old_projects.eola.chapter3 import MatrixVectorMultiplicationAbstract
 
 
 class OpeningQuote(Scene):
diff --git a/old_projects/eola/chapter5.py b/old_projects/eola/chapter5.py
index a4e88d75..b5676e74 100644
--- a/old_projects/eola/chapter5.py
+++ b/old_projects/eola/chapter5.py
@@ -1,5 +1,5 @@
 from big_ol_pile_of_manim_imports import *
-from eola.chapter3 import MatrixVectorMultiplicationAbstract
+from old_projects.eola.chapter3 import MatrixVectorMultiplicationAbstract
 
 
 class Blob(Circle):
diff --git a/old_projects/eola/chapter6.py b/old_projects/eola/chapter6.py
index 58cfb3f8..0b036375 100644
--- a/old_projects/eola/chapter6.py
+++ b/old_projects/eola/chapter6.py
@@ -379,7 +379,7 @@ class SystemOfEquations(Scene):
             Circle().replace(mob).scale_in_place(1.3)
             for mob in [
                 VMobject(*equations.split()[i].split()[j:j+2])
-                for i, j in (1, 3), (2, 6)
+                for i, j in [(1, 3), (2, 6)]
             ]
         ])
         zero_circles.set_color(PINK)
diff --git a/old_projects/eola/chapter7.py b/old_projects/eola/chapter7.py
index 7a742d11..4b13712c 100644
--- a/old_projects/eola/chapter7.py
+++ b/old_projects/eola/chapter7.py
@@ -1,5 +1,5 @@
 from big_ol_pile_of_manim_imports import *
-from eola.footnote2 import TwoDTo1DTransformWithDots
+from old_projects.eola.footnote2 import TwoDTo1DTransformWithDots
 
 
 V_COLOR = YELLOW
diff --git a/old_projects/eola/chapter8.py b/old_projects/eola/chapter8.py
index 462e437d..af7ec324 100644
--- a/old_projects/eola/chapter8.py
+++ b/old_projects/eola/chapter8.py
@@ -1,5 +1,5 @@
 from big_ol_pile_of_manim_imports import *
-from eola.chapter5 import get_det_text, RightHandRule
+from old_projects.eola.chapter5 import get_det_text, RightHandRule
 
 
 U_COLOR = ORANGE
@@ -1159,7 +1159,7 @@ class BiggerWhenPerpendicular(LinearTransformationScene):
         w.target = w.copy().rotate(np.pi/5)
         transforms = [
             self.get_matrix_transformation([v1.get_end()[:2], v2.get_end()[:2]])
-            for v1, v2 in (v, w), (v.target, w.target)
+            for v1, v2 in [(v, w), (v.target, w.target)]
         ]
         start_square, end_square = [
             square.copy().apply_function(transform)
diff --git a/old_projects/eola/chapter8p2.py b/old_projects/eola/chapter8p2.py
index fc2d9a87..b7584ece 100644
--- a/old_projects/eola/chapter8p2.py
+++ b/old_projects/eola/chapter8p2.py
@@ -1,6 +1,6 @@
 from big_ol_pile_of_manim_imports import *
-from eola.chapter5 import get_det_text
-from eola.chapter8 import *
+from old_projects.eola.chapter5 import get_det_text
+from old_projects.eola.chapter8 import *
 
 
 class OpeningQuote(Scene):
diff --git a/old_projects/eola/chapter9.py b/old_projects/eola/chapter9.py
index 7b9a0475..21fb1ee6 100644
--- a/old_projects/eola/chapter9.py
+++ b/old_projects/eola/chapter9.py
@@ -1,5 +1,5 @@
 from big_ol_pile_of_manim_imports import *
-from eola.chapter1 import plane_wave_homotopy
+from old_projects.eola.chapter1 import plane_wave_homotopy
 
 V_COLOR = YELLOW
 
diff --git a/old_projects/eola/thumbnails.py b/old_projects/eola/thumbnails.py
index 4c7579ec..96512519 100644
--- a/old_projects/eola/thumbnails.py
+++ b/old_projects/eola/thumbnails.py
@@ -1,5 +1,5 @@
 from big_ol_pile_of_manim_imports import *
-from eola.chapter9 import Jennifer, You
+from old_projects.eola.chapter9 import Jennifer, You
 
 class Chapter0(LinearTransformationScene):
     CONFIG = {
diff --git a/old_projects/hanoi.py b/old_projects/hanoi.py
index c7feeaee..df5e7a75 100644
--- a/old_projects/hanoi.py
+++ b/old_projects/hanoi.py
@@ -2030,7 +2030,7 @@ class RecursiveSolutionToConstrained(RecursiveSolution):
                 "Move disk %d,"%d,
                 "Move %d-tower"%d,
             ).set_color_by_tex("Move disk %d,"%d, color)
-            for d, color in (3, GREEN), (2, RED), (1, BLUE_C)
+            for d, color in [(3, GREEN), (2, RED), (1, BLUE_C)]
         ]
         sub_steps, sub_sub_steps = subdivisions[:2]
         for steps in subdivisions:
diff --git a/old_projects/highD.py b/old_projects/highD.py
index 6da534cd..50f07295 100644
--- a/old_projects/highD.py
+++ b/old_projects/highD.py
@@ -1977,7 +1977,7 @@ class TwoDBoxWithSliders(TwoDimensionalCase):
                     slider.number_to_point(0)-slider.number_to_point(slider.center_value)
                 )
                 for slider in self.sliders
-                for mob in slider.real_estate_ticks, slider.dial
+                for mob in [slider.real_estate_ticks, slider.dial]
             ]
         )
         self.center_point = [0, 0]
@@ -1996,7 +1996,7 @@ class TwoDBoxWithSliders(TwoDimensionalCase):
                     slider.number_to_point(x)-slider.number_to_point(0)
                 )
                 for x, slider in zip(original_center_point, self.sliders)
-                for mob in slider.real_estate_ticks, slider.dial
+                for mob in [slider.real_estate_ticks, slider.dial]
             ]
         )
         self.center_point = original_center_point
@@ -2296,7 +2296,7 @@ class ThreeDBoxExampleWithSliders(SliderScene):
         re_words.to_corner(UP+LEFT)
         re_line = DashedLine(*[
             self.sliders[i].number_to_point(target_x) + MED_SMALL_BUFF*vect
-            for i, vect in (0, LEFT), (2, RIGHT)
+            for i, vect in [(0, LEFT), (2, RIGHT)]
         ])
         new_arrow = Arrow(
             re_words.get_corner(DOWN+RIGHT), re_line.get_left(),
@@ -2322,7 +2322,7 @@ class ThreeDBoxExampleWithSliders(SliderScene):
     def compare_to_halfway_point(self):
         half_line = Line(*[
             self.sliders[i].number_to_point(0.5)+MED_SMALL_BUFF*vect
-            for i, vect in (0, LEFT), (2, RIGHT)
+            for i, vect in [(0, LEFT), (2, RIGHT)]
         ])
         half_line.set_stroke(MAROON_B, 6)
         half_label = TexMobject("0.5")
@@ -2507,7 +2507,7 @@ class FourDBoxExampleWithSliders(ThreeDBoxExampleWithSliders):
         target_vector = 0.5*np.ones(4)
         re_line = DashedLine(*[
             self.sliders[i].number_to_point(0.5)+MED_SMALL_BUFF*vect
-            for i, vect in (0, LEFT), (-1, RIGHT)
+            for i, vect in [(0, LEFT), (-1, RIGHT)]
         ])
         half_label = TexMobject("0.5")
         half_label.scale(self.sliders[0].number_scale_val)
@@ -2655,7 +2655,7 @@ class TwoDInnerSphereTouchingBox(TwoDBoxWithSliders, PiCreatureScene):
         randy = self.randy
         tangency_points = VGroup(*[
             Dot(self.plane.coords_to_point(x, y))
-            for x, y in (1, 0), (0, 1), (-1, 0), (0, -1)
+            for x, y in [(1, 0), (0, 1), (-1, 0), (0, -1)]
         ])
         tangency_points.set_fill(YELLOW, 0.5)
 
@@ -2747,7 +2747,7 @@ class FiveDBoxExampleWithSliders(FourDBoxExampleWithSliders):
         target_x = 1-np.sqrt(0.2)
         re_line = DashedLine(*[
             self.sliders[i].number_to_point(target_x)+MED_SMALL_BUFF*vect
-            for i, vect in (0, LEFT), (-1, RIGHT)
+            for i, vect in [(0, LEFT), (-1, RIGHT)]
         ])
         re_words = TextMobject(
             "$0.2$", "units of real \\\\ estate each"
@@ -2785,7 +2785,7 @@ class FiveDBoxExampleWithSliders(FourDBoxExampleWithSliders):
     def show_halfway_point(self):
         half_line = Line(*[
             self.sliders[i].number_to_point(0.5)+MED_SMALL_BUFF*vect
-            for i, vect in (0, LEFT), (-1, RIGHT)
+            for i, vect in [(0, LEFT), (-1, RIGHT)]
         ])
         half_line.set_color(MAROON_B)
         half_label = TexMobject("0.5")
@@ -2943,7 +2943,7 @@ class TenDBoxExampleWithSliders(FiveDBoxExampleWithSliders):
         target_x = 1-np.sqrt(1./self.n_sliders)
         re_line = DashedLine(*[
             self.sliders[i].number_to_point(target_x)+MED_SMALL_BUFF*vect
-            for i, vect in (0, LEFT), (-1, RIGHT)
+            for i, vect in [(0, LEFT), (-1, RIGHT)]
         ])
 
         re_rects = VGroup()
diff --git a/old_projects/hilbert/fractal_porn.py b/old_projects/hilbert/fractal_porn.py
index 6199ff9e..dd53832e 100644
--- a/old_projects/hilbert/fractal_porn.py
+++ b/old_projects/hilbert/fractal_porn.py
@@ -1,5 +1,5 @@
 from big_ol_pile_of_manim_imports import *
-from hilbert.curves import *
+from old_projects.hilbert.curves import *
 
 class Intro(TransformOverIncreasingOrders):
     @staticmethod
diff --git a/old_projects/leibniz.py b/old_projects/leibniz.py
index a5cbe015..f50e0b99 100644
--- a/old_projects/leibniz.py
+++ b/old_projects/leibniz.py
@@ -3443,7 +3443,7 @@ class IntroduceChi(FactorizationPattern):
     CONFIG = {
         "numbers_list" : [
             list(range(i, 36, d))
-            for i, d in (1, 4), (3, 4), (2, 2)
+            for i, d in [(1, 4), (3, 4), (2, 2)]
         ],
         "colors" : [GREEN, RED, YELLOW]
     }
diff --git a/old_projects/tattoo.py b/old_projects/tattoo.py
index 7de497bb..b1090a81 100644
--- a/old_projects/tattoo.py
+++ b/old_projects/tattoo.py
@@ -747,7 +747,7 @@ class RenameAllInTermsOfSine(Scene):
         self.wait(2)
 
         anims = []
-        for mob, rhs_mob in zip(mobs, rhs_mobs)[1:3]:
+        for mob, rhs_mob in list(zip(mobs, rhs_mobs))[1:3]:
             anims += [
                 FadeOut(rhs_mob),
                 mob.restore,
diff --git a/old_projects/triangle_of_power/end.py b/old_projects/triangle_of_power/end.py
index bc2fb3d5..e9b3dccb 100644
--- a/old_projects/triangle_of_power/end.py
+++ b/old_projects/triangle_of_power/end.py
@@ -1,6 +1,6 @@
 from big_ol_pile_of_manim_imports import *
 
-from triangle_of_power.triangle import TOP, OPERATION_COLORS
+from old_projects.triangle_of_power.triangle import TOP, OPERATION_COLORS
 
 class DontLearnFromSymbols(Scene):
     def construct(self):
diff --git a/old_projects/triples.py b/old_projects/triples.py
index a5b81c02..6206a351 100644
--- a/old_projects/triples.py
+++ b/old_projects/triples.py
@@ -1741,7 +1741,7 @@ class VisualizeZSquared(Scene):
     def show_triangles(self):
         z_list = [
             complex(u, v)**2
-            for u, v in (2, 1), (3, 2), (4, 1)
+            for u, v in [(2, 1), (3, 2), (4, 1)]
         ]
         triangles = self.get_triangles(z_list)
         triangle = triangles[0]
diff --git a/old_projects/wallis.py b/old_projects/wallis.py
index a87c0612..768aece7 100644
--- a/old_projects/wallis.py
+++ b/old_projects/wallis.py
@@ -3483,7 +3483,7 @@ class KeeperAndSailor(DistanceProductScene, PiCreatureScene):
         anims += [
             MoveToTarget(part)
             for pi in self.observers
-            for part in pi, pi.dot, pi.title
+            for part in [pi, pi.dot, pi.title]
         ]
 
         anims += added_anims
@@ -4908,7 +4908,7 @@ class KeeperAndSailorForSineProduct(KeeperAndSailor):
             FadeOut(product_lines),
             *[
                 ReplacementTransform(product[i], one_minus_f_over_k[j])
-                for i, j in (3, 1), (4, 2), (5, 3), (2, 4), (1, 5)
+                for i, j in [(3, 1), (4, 2), (5, 3), (2, 4), (1, 5)]
             ]
         )
         self.wait()
diff --git a/old_projects/waves.py b/old_projects/waves.py
index b3c9ee51..405c7b5f 100644
--- a/old_projects/waves.py
+++ b/old_projects/waves.py
@@ -1777,7 +1777,7 @@ class ShowTipToTailSum(ShowVectorEquation):
                         np.array(ov.A_vect)
                     )
                 )
-                for ov, A in (h_ov, h_A), (v_ov, v_A)
+                for ov, A in [(h_ov, h_A), (v_ov, v_A)]
             ]
         ))
         self.wait(4)
@@ -1917,7 +1917,7 @@ class AlternateBasis(ShowTipToTailSum):
                 "(\\dots)",
                 "|\\!\\%sarrow\\rangle"%s2,
             )
-            for s1, s2 in ("right", "up"), ("ne", "nw")
+            for s1, s2 in [("right", "up"), ("ne", "nw")]
         ]
         for superposition in superpositions:
             superposition.set_color_by_tex("rangle", YELLOW)
@@ -2519,7 +2519,7 @@ class DescribePhoton(ThreeDScene):
                 color = color,
                 normal_vector = RIGHT,
             )
-            for color, direction in (self.x_color, UP), (self.y_color, OUT)
+            for color, direction in [(self.x_color, UP), (self.y_color, OUT)]
         ]
         v_arrow.move_to(h_arrow.get_end(), IN)
         h_part = VGroup(*self.equation[1][2:4]).copy()
@@ -3905,7 +3905,7 @@ class CompareWaveEquations(TeacherStudentsScene):
                 radius = 0.05,
                 color = color
             )
-            for x, color in (-0.5, RED), (0.5, GREEN)
+            for x, color in [(-0.5, RED), (0.5, GREEN)]
         ]
         new_alpha.target.next_to(alpha_dot, UP+LEFT, 0.5*SMALL_BUFF)
         new_alpha.target.set_color(RED)
diff --git a/old_projects/wcat.py b/old_projects/wcat.py
index fda29ef0..638745e2 100644
--- a/old_projects/wcat.py
+++ b/old_projects/wcat.py
@@ -526,7 +526,7 @@ class DefineInscribedSquareProblem(ClosedLoopScene):
 
         dot_pairs = [
             VGroup(self.dots[i], self.dots[j])
-            for i, j in (0, 2), (1, 3)
+            for i, j in [(0, 2), (1, 3)]
         ]
         pair_colors = MAROON_B, PURPLE_B
         diag_lines = [
@@ -549,7 +549,7 @@ class RectangleProperties(Scene):
         ])
         dot_pairs = [
             VGroup(vertex_dots[i], vertex_dots[j])
-            for i, j in (0, 2), (1, 3)
+            for i, j in [(0, 2), (1, 3)]
         ]
         colors = [MAROON_B, PURPLE_B]
         diag_lines = [
@@ -615,7 +615,7 @@ class PairOfPairBecomeRectangle(Scene):
                 dots[j].get_center(), 
                 color = dots[i].get_color()
             )
-            for i, j in (0, 1), (2, 3)
+            for i, j in [(0, 1), (2, 3)]
         ]
         groups = [
             VGroup(dots[0], dots[1], labels[0], labels[1], lines[0]),