Figure 7: NumPy / datetime objects - date time chart - GitHub stars of GMT and the wrappers

Fig7_PyGMT_datetime.ipynb

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Fig7_PyGMT_datetime.py

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+import requests
+import pandas as pd
+
+owner = "GenericMappingTools"
+headers = {"Accept": "application/vnd.github.v3.star+json"}
+
+for repo in ["gmt.jl", "pygmt", "gmt", "gmtmex"]:
+    timestamps = []
+    page = 1
+
+    while True:
+        r = requests.get(
+            f"https://api.github.com/repos/{owner}/{repo}/stargazers",
+            headers=headers,
+            params={"per_page": 100, "page": page},
+        )
+        data = r.json()
+        if not data:
+            break
+
+        timestamps += [s["starred_at"] for s in data]  # full ISO 8601 timestamp
+        page += 1
+
+    timestamps.sort()  # ISO strings sort chronologically
+
+    df = pd.DataFrame({"timestamp": timestamps})
+    df["cumulative_stars"] = range(1, len(df) + 1)
+
+    print(df)
+    df.to_csv(f"star_history_github_{repo}.csv", sep=";", index=False)
+
+
+
+# %%
+import datetime
+
+import pandas as pd
+import pygmt
+from pygmt.params import Box
+
+stars_step = 20
+
+fig = pygmt.Figure()
+
+fig.basemap(
+    projection="X12c/6c",
+    region=[datetime.date(2016, 1, 1), datetime.date(2026, 12, 31), -50, 1000],
+    frame=["x+lYear", "ya100f50+lGitHub stars"],
+)
+
+for wrapper, file, color, symbol in zip(
+    ["GMT", "PyGMT", "GMT.jl", "GMT/MEX"],
+    ["gmt", "pygmt", "gmt.jl", "gmtmex"],
+    ["238/86/52", "48/105/152", "149/88/178", "230/51/51"],
+    ["C", "A", "I", "T"],
+    strict=False,
+):
+    stars = pd.read_csv(f"star_history_github_{file}.csv", sep=";")
+    fig.plot(data=stars, pen=color)
+    fig.plot(data=stars[0:len(stars):stars_step], fill=color, style=f"{symbol}0.2c", label=wrapper)
+
+fig.legend(
+    position="jTL+o0.1c+w2.3", box=Box(fill="gray95", pen="0.5p,gray50", radius="3p"),
+)
+
+fig.show()
+fig.savefig(fname="Fig7_PyGMT_datetime.png")