style: pre-commit fixes

Author: pre-commit-ci[bot]

quantities.ipynb

@@ -55,8 +55,8 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "import numpy as np\n",
     "import matplotlib.pyplot as plt\n",
+    "import numpy as np\n",
     "\n",
     "# You shouldn't use the `seed` function in real science code, but we use it here for example purposes.\n",
     "# It makes the \"random\" number generator always give the same numbers wherever you run it.\n",
@@ -161,9 +161,9 @@
    "outputs": [],
    "source": [
     "print(\n",
-    "    \"\"\"Half light radius\n",
-    "value: {0}\n",
-    "unit: {1}\"\"\".format(Reff.value, Reff.unit)\n",
+    "    f\"\"\"Half light radius\n",
+    "value: {Reff.value}\n",
+    "unit: {Reff.unit}\"\"\"\n",
     ")"
    ]
   },
@@ -181,9 +181,9 @@
    "outputs": [],
    "source": [
     "print(\n",
-    "    \"\"\"Half light radius\n",
-    "value: {0.value}\n",
-    "unit: {0.unit}\"\"\".format(Reff)\n",
+    "    f\"\"\"Half light radius\n",
+    "value: {Reff.value}\n",
+    "unit: {Reff.unit}\"\"\"\n",
     ")"
    ]
   },
@@ -200,7 +200,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "print(\"{0:.3g}\".format(Reff.to(u.m)))"
+    "print(f\"{Reff.to(u.m):.3g}\")"
    ]
   },
   {
@@ -228,9 +228,9 @@
    "outputs": [],
    "source": [
     "print(\n",
-    "    \"\"\"First 10 radial velocity measurements: \n",
-    "{0}\n",
-    "{1}\"\"\".format(v[:10], v.to(u.m / u.s)[:10])\n",
+    "    f\"\"\"First 10 radial velocity measurements: \n",
+    "{v[:10]}\n",
+    "{v.to(u.m / u.s)[:10]}\"\"\"\n",
     ")"
    ]
   },
@@ -282,7 +282,7 @@
    "outputs": [],
    "source": [
     "sigma = np.sqrt(np.sum((v - np.mean(v)) ** 2) / np.size(v))\n",
-    "print(\"Velocity dispersion: {0:.2f}\".format(sigma))"
+    "print(f\"Velocity dispersion: {sigma:.2f}\")"
    ]
   },
   {
@@ -355,10 +355,10 @@
    "outputs": [],
    "source": [
     "print(\n",
-    "    \"\"\"Galaxy mass\n",
-    "in solar units: {0:.3g}\n",
-    "SI units: {1:.3g}\n",
-    "CGS units: {2:.3g}\"\"\".format(M.to(u.Msun), M.si, M.cgs)\n",
+    "    f\"\"\"Galaxy mass\n",
+    "in solar units: {M.to(u.Msun):.3g}\n",
+    "SI units: {M.si:.3g}\n",
+    "CGS units: {M.cgs:.3g}\"\"\"\n",
     ")"
    ]
   },
@@ -562,9 +562,9 @@
     "# Average velocity bin width\n",
     "dv = (v.max() - v.min()) / len(v)\n",
     "print(\n",
-    "    \"\"\"dra = {0}\n",
-    "ddec = {1}\n",
-    "dv = {2}\"\"\".format(dra.to(u.arcsec), ddec.to(u.arcsec), dv)\n",
+    "    f\"\"\"dra = {dra.to(u.arcsec)}\n",
+    "ddec = {ddec.to(u.arcsec)}\n",
+    "dv = {dv}\"\"\"\n",
     ")"
    ]
   },
@@ -607,7 +607,7 @@
     "    interpolation=\"nearest\",\n",
     "    aspect=\"equal\",\n",
     ")\n",
-    "plt.colorbar().set_label(\"Intensity ({})\".format(intcloud.unit))\n",
+    "plt.colorbar().set_label(f\"Intensity ({intcloud.unit})\")\n",
     "plt.xlabel(\"RA (deg)\")\n",
     "plt.ylabel(\"Dec (deg)\");"
    ]
@@ -746,7 +746,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "print(\"{0}\\n{1}\".format(B, B.decompose()))"
+    "print(f\"{B}\\n{B.decompose()}\")"
    ]
   },
   {