Round-2 consistency pass: espace de nommage and renvoyer edition-wide, plus two hand-ports

[mmcky]

Brings the rest of the edition into line with Emile's round-2 rulings (#77, #78, #80 — merged today), following the #26 pattern, plus two small hand-ports. 13 lines in 8 files; no wording changes beyond the ones listed.

Terminology, per the rulings

Change	Lines	Ruling
« espace de noms » → « espace de nommage »	oop_intro.md:398, scipy.md:88, python_oop.md:262, python_oop.md:296	#80 item 6 (official French Python docs). The adjective at oop_intro.md:398 stays « intégré » until the built-in question on #80 is answered.
« retourner » → « renvoyer » (a function or method returning a value)	pandas_panel.md:466/475/479/517/523, polars.md:546	#80 item 19
« des lois normales centrées réduites » → « des variables normales centrées réduites »	functions.md:348	The English "standard normals" here are draws, not the distribution

Hand-ports

• numpy.md:1296: discreteRV → DiscreteRV — an edit from FIX: seven source-side defects in python_by_example, functions, numpy and pandas lecture-python-programming#604 that never reached this edition, because every numpy.md sync has failed structural parity (the source's duplicated {index}, now proposed for removal in [numpy] Remove the duplicated {index} directive under Matrix Multiplication lecture-python-programming#632).
• sympy.md: repairs the garbled seed anchor (sympy= (live as a stray paragraph) and drops the duplicate (sympy)= added before the title in Restore the (sympy)= target anchor dropped by the seed translation #16, so the pre-title matches the source.

This pairs with the French glossary v1.2 (QuantEcon/action-translation#328, which pins Namespace → Espace de nommage): merging this first means the release does not leave the edition inconsistent with its own glossary. apply.mjs --dry-run reports no typography changes (0/27).

@Honaminto — for information; nothing here needs your time unless you disagree with a change.

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Copilot review overview

🟡 Changes recommended

There is a verified typo in lectures/python_oop.md (__init_ vs __init__) that should be corrected before merging.

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Findings: 1

Open (1)

• Incorrect Python constructor magic method name · New

What changed in this PR

This PR applies an edition-wide terminology consistency pass (per prior merged rulings) and includes two small hand-ports to align this edition with upstream/source structure.

Changes:

• Replace « espace de noms » with « espace de nommage » in remaining targeted chapters.
• Replace « retourner » with « renvoyer » when describing functions/methods returning values.
• Hand-port fixes: correct the SymPy anchor placement and update a NumPy class name reference (DiscreteRV).

File	Description
lectures/​sympy.md	Fixes/normalizes the (sympy)= anchor placement by removing the garbled/duplicate target.
lectures/​scipy.md	Updates namespace terminology in a SciPy note block to « espace de nommage ».
lectures/​python_oop.md	Updates namespace terminology to « espace de nommage » in OOP constructor/instance storage explanations.
lectures/​polars.md	Updates “returns” terminology to « renvoie » in the lazy API explanation.
lectures/​pandas_panel.md	Updates multiple “returns” occurrences to « renvoyer/renverra » in the groupby/panel exercise text.
lectures/​oop_intro.md	Updates built-in namespace phrasing to « espace de nommage intégré ».
lectures/​numpy.md	Updates class reference from discreteRV to DiscreteRV for consistency with the defined class name.
lectures/​functions.md	Clarifies wording from “standard normals” as distributions to “variables normales centrées réduites” as draws/variables.

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Commit: c4cfbdf

📚 Changed Lectures

• functions
• numpy
• oop_intro
• pandas_panel
• polars
• python_oop
• scipy
• sympy

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