Add some more imports to ipython (e.g. matplotlib)

.ipython/profile_default/startup/50-imports.py

+import collections
 import functools
 import itertools
+import math
+import re
+import subprocess
+from subprocess import run
 
 import astropy
 import astropy.constants
 import astropy.cosmology
 import astropy.units
 import h5py
+import matplotlib
+import matplotlib.colors
+import matplotlib.pyplot
 import numba
 import numpy
 import numpy.fft
@@ -14,6 +22,8 @@ import numpy.random
 import pandas
 from pathlib import Path
 
+import bin_density
+import m200_util
 import read_snapshot
 import read_snapshot.hdf5
 import read_snapshot.gadget
@@ -23,5 +33,6 @@ from snapshot import Snapshot
 aconst = astropy.constants
 acosmo = astropy.cosmology
 aunits = astropy.units
+plt = matplotlib.pyplot
 rs = read_snapshot
 rs5 = read_snapshot.hdf5