build, data: the Greek capitals by name; one way to run python3; bench.sh checks its own binary

Δ Γ Λ Ω Φ Ψ Σ Θ answered only to De, Ga, La, Om, Ph, Ps, Si, Th, while
their small letters answered to delta, gamma and the rest; they answer to
the names too now.  mkemoji and cldr2emoji write UTF-8 whatever the
locale, as the other generators already did; verify-map calls python3 the
one way; the tests' include path drops a directory nothing includes
through; and bench.sh says which binary is missing instead of blaming the
daemon ten seconds later.

map/cldr2emoji

@@ -28,6 +28,8 @@ def annotations(path):
 
 
 def main():
+    sys.stdout.reconfigure(encoding="utf-8")
+    sys.stderr.reconfigure(encoding="utf-8")
     if len(sys.argv) < 3:
         print(f"usage: {sys.argv[0]} emoji-test.txt annotations.json...",
               file=sys.stderr)

map/emoji.dict

@@ -52,7 +52,7 @@ beta	β
 chi	χ
 deg	° 🪯
 degree	°
-delta	δ
+delta	δ Δ
 de	Δ 🪅
 dn	↓
 down	↓ 🫳 👇 👎 🐨 📩 📉 ⬇️ ⤵️ 🔽 ⏬ 🔻
@@ -60,7 +60,7 @@ _e	ₑ
 eps	ε
 eta	η
 fuck	凸
-gamma	γ
+gamma	γ Γ
 ga	Γ
 ^i	ⁱ
 ii	∫
@@ -69,34 +69,34 @@ inf	∞
 infinity	∞ ♾️
 iota	ι
 kappa	κ
-lambda	λ
+lambda	λ Λ
 la	Λ
 mul	×
 times	×
 mu	μ
 ^n	ⁿ
 nu	ν
-omega	ω
+omega	ω Ω
 om	Ω 🕉️
 oo	●
 circle	● 🛞 ⏺️ ⭕ Ⓜ️ 🔴 🟠 🟡 🟢 🔵 🟣 🟤 ⚫ ⚪
 _o	ₒ
-phi	φ
+phi	φ Φ
 ph	Φ
 pi	π Π 👲
 pp	∏
 prod	∏
-psi	ψ
+psi	ψ Ψ
 ps	Ψ
 rho	ρ
-sigma	σ
+sigma	σ Σ
 si	Σ
 sq	√
 sqrt	√
 ss	∑
 sum	∑
 tau	τ
-theta	θ
+theta	θ Θ
 th	Θ
 up	↑ 🤮 🫳 👆 ☝️ 👍 🤲 🧗 🧗‍♂️ 🧗‍♀️ 🍳 🧣 🧥 📄 📈 ⬆️ ⤴️ 🔝 🔼 ⏫ 🆙 🔺
 ups	υ

map/mkemoji

@@ -69,6 +69,8 @@ def build(entries):
 
 
 def main():
+    sys.stdout.reconfigure(encoding="utf-8")
+    sys.stderr.reconfigure(encoding="utf-8")
     paths = [Path(arg) for arg in sys.argv[1:]] or SOURCES
     try:
         entries = [entry for path in paths for entry in read(path)]

map/symbol.src

@@ -55,44 +55,44 @@
 χ	chi
 °	deg	degree
 δ	delta
-Δ	De
+Δ	De	Delta
 ↓	dn	down
 ₑ	_e
 ε	eps
 η	eta
 凸	fuck
 γ	gamma
-Γ	Ga
+Γ	Ga	Gamma
 ⁱ	^i
 ∫	II	integral
 ∞	inf	infinity
 ι	iota
 κ	kappa
 λ	lambda
-Λ	La
+Λ	La	Lambda
 ×	mul	times
 μ	mu
 ⁿ	^n
 ν	nu
 ω	omega
-Ω	Om
+Ω	Om	Omega
 ●	oo	circle
 ₒ	_o
 φ	phi
-Φ	Ph
+Φ	Ph	Phi
 π	pi
 Π	Pi
 ∏	PP	prod
 ψ	psi
-Ψ	Ps
+Ψ	Ps	Psi
 ρ	rho
 σ	sigma
-Σ	Si
+Σ	Si	Sigma
 √	sq	sqrt
 ∑	SS	sum
 τ	tau
 θ	theta
-Θ	Th
+Θ	Th	Theta
 ↑	up
 υ	ups
 ✓	vv	check