I've used nix-index to answer this question:

$ nix-locate --top-level /bin/python3
remarkable2-toolchain.out 0 s /nix/store/lygxp772hm743v33wbri22f2k78k1vsb-remarkable2-toolchain-3.1.2/sysroots/cortexa7hf-neon-remarkable-linux-gnueabi/usr/bin/python3
remarkable2-toolchain.out 0 s /nix/store/lygxp772hm743v33wbri22f2k78k1vsb-remarkable2-toolchain-3.1.2/sysroots/cortexa7hf-neon-remarkable-linux-gnueabi/usr/bin/python3-config
remarkable2-toolchain.out 5,544 x /nix/store/lygxp772hm743v33wbri22f2k78k1vsb-remarkable2-toolchain-3.1.2/sysroots/cortexa7hf-neon-remarkable-linux-gnueabi/usr/bin/python3.8
remarkable2-toolchain.out 0 s /nix/store/lygxp772hm743v33wbri22f2k78k1vsb-remarkable2-toolchain-3.1.2/sysroots/cortexa7hf-neon-remarkable-linux-gnueabi/usr/bin/python3.8-config
remarkable2-toolchain.out 2,114 x /nix/store/lygxp772hm743v33wbri22f2k78k1vsb-remarkable2-toolchain-3.1.2/sysroots/cortexa7hf-neon-remarkable-linux-gnueabi/usr/bin/python3.8-config-lib
remarkable2-toolchain.out 0 s /nix/store/lygxp772hm743v33wbri22f2k78k1vsb-remarkable2-toolchain-3.1.2/sysroots/x86_64-codexsdk-linux/usr/bin/python3
remarkable2-toolchain.out 306 x /nix/store/lygxp772hm743v33wbri22f2k78k1vsb-remarkable2-toolchain-3.1.2/sysroots/x86_64-codexsdk-linux/usr/bin/python3.8
remarkable2-toolchain.out 18,432 x /nix/store/lygxp772hm743v33wbri22f2k78k1vsb-remarkable2-toolchain-3.1.2/sysroots/x86_64-codexsdk-linux/usr/bin/python3.8.real
remarkable-toolchain.out 0 s /nix/store/qk2p0ahd3nndi2zlwm9d0psahlrpikm0-remarkable-toolchain-3.1.2/sysroots/cortexa9hf-neon-remarkable-linux-gnueabi/usr/bin/python3
remarkable-toolchain.out 0 s /nix/store/qk2p0ahd3nndi2zlwm9d0psahlrpikm0-remarkable-toolchain-3.1.2/sysroots/cortexa9hf-neon-remarkable-linux-gnueabi/usr/bin/python3-config
remarkable-toolchain.out 5,544 x /nix/store/qk2p0ahd3nndi2zlwm9d0psahlrpikm0-remarkable-toolchain-3.1.2/sysroots/cortexa9hf-neon-remarkable-linux-gnueabi/usr/bin/python3.8
remarkable-toolchain.out 0 s /nix/store/qk2p0ahd3nndi2zlwm9d0psahlrpikm0-remarkable-toolchain-3.1.2/sysroots/cortexa9hf-neon-remarkable-linux-gnueabi/usr/bin/python3.8-config
remarkable-toolchain.out 2,114 x /nix/store/qk2p0ahd3nndi2zlwm9d0psahlrpikm0-remarkable-toolchain-3.1.2/sysroots/cortexa9hf-neon-remarkable-linux-gnueabi/usr/bin/python3.8-config-lib
remarkable-toolchain.out 0 s /nix/store/qk2p0ahd3nndi2zlwm9d0psahlrpikm0-remarkable-toolchain-3.1.2/sysroots/x86_64-codexsdk-linux/usr/bin/python3
remarkable-toolchain.out 306 x /nix/store/qk2p0ahd3nndi2zlwm9d0psahlrpikm0-remarkable-toolchain-3.1.2/sysroots/x86_64-codexsdk-linux/usr/bin/python3.8
remarkable-toolchain.out 18,432 x /nix/store/qk2p0ahd3nndi2zlwm9d0psahlrpikm0-remarkable-toolchain-3.1.2/sysroots/x86_64-codexsdk-linux/usr/bin/python3.8.real
qtile.out 15,872 x /nix/store/mrpll8c98mvnnzab5znqawz56dvq841j-qtile-0.22.1/bin/python3
qtile.out 15,872 x /nix/store/mrpll8c98mvnnzab5znqawz56dvq841j-qtile-0.22.1/bin/python3-config
qtile.out 15,872 x /nix/store/mrpll8c98mvnnzab5znqawz56dvq841j-qtile-0.22.1/bin/python3.10
qtile.out 15,872 x /nix/store/mrpll8c98mvnnzab5znqawz56dvq841j-qtile-0.22.1/bin/python3.10-config
python3Minimal.out 0 s /nix/store/igdcckxrd115041zvvcqmw9qxwf6pfxv-python3-minimal-3.10.8/bin/python3
python3Minimal.out 15,616 x /nix/store/igdcckxrd115041zvvcqmw9qxwf6pfxv-python3-minimal-3.10.8/bin/python3.10
python311.out 0 s /nix/store/ipaj21xdmnw2f2bs9mcd7czkzhdhbcfv-python3-3.11.1/bin/python3
python311.out 0 s /nix/store/ipaj21xdmnw2f2bs9mcd7czkzhdhbcfv-python3-3.11.1/bin/python3-config
python311.out 15,616 x /nix/store/ipaj21xdmnw2f2bs9mcd7czkzhdhbcfv-python3-3.11.1/bin/python3.11
python311.out 3,404 x /nix/store/ipaj21xdmnw2f2bs9mcd7czkzhdhbcfv-python3-3.11.1/bin/python3.11-config
python38.out 0 s /nix/store/n3ma7kwpssmwlgv118pc6k5ia0splp2m-python3-3.8.16/bin/python3
python38.out 0 s /nix/store/n3ma7kwpssmwlgv118pc6k5ia0splp2m-python3-3.8.16/bin/python3-config
python38.out 15,616 x /nix/store/n3ma7kwpssmwlgv118pc6k5ia0splp2m-python3-3.8.16/bin/python3.8
python38.out 3,444 x /nix/store/n3ma7kwpssmwlgv118pc6k5ia0splp2m-python3-3.8.16/bin/python3.8-config
python37.out 0 s /nix/store/a1gzdpyn8bbp192cavnxl6sa3snjx563-python3-3.7.16/bin/python3
python37.out 0 s /nix/store/a1gzdpyn8bbp192cavnxl6sa3snjx563-python3-3.7.16/bin/python3-config
python37.out 15,616 x /nix/store/a1gzdpyn8bbp192cavnxl6sa3snjx563-python3-3.7.16/bin/python3.7
python37.out 0 s /nix/store/a1gzdpyn8bbp192cavnxl6sa3snjx563-python3-3.7.16/bin/python3.7-config
python37.out 15,616 x /nix/store/a1gzdpyn8bbp192cavnxl6sa3snjx563-python3-3.7.16/bin/python3.7m
python37.out 3,210 x /nix/store/a1gzdpyn8bbp192cavnxl6sa3snjx563-python3-3.7.16/bin/python3.7m-config
python3Full.out 0 s /nix/store/rf7mdhqwpfzj239ylwim4rfqhw4fz52h-python3-3.10.8/bin/python3
python3Full.out 0 s /nix/store/rf7mdhqwpfzj239ylwim4rfqhw4fz52h-python3-3.10.8/bin/python3-config
python3Full.out 15,616 x /nix/store/rf7mdhqwpfzj239ylwim4rfqhw4fz52h-python3-3.10.8/bin/python3.10
python3Full.out 3,447 x /nix/store/rf7mdhqwpfzj239ylwim4rfqhw4fz52h-python3-3.10.8/bin/python3.10-config
python38Full.out 0 s /nix/store/b5yxnf8vq4rdkbz1z8wydhcxz3r1zsg7-python3-3.8.16/bin/python3
python38Full.out 0 s /nix/store/b5yxnf8vq4rdkbz1z8wydhcxz3r1zsg7-python3-3.8.16/bin/python3-config
python38Full.out 15,616 x /nix/store/b5yxnf8vq4rdkbz1z8wydhcxz3r1zsg7-python3-3.8.16/bin/python3.8
python38Full.out 3,444 x /nix/store/b5yxnf8vq4rdkbz1z8wydhcxz3r1zsg7-python3-3.8.16/bin/python3.8-config
sourcehut.python.out 0 s /nix/store/lbn7f0d2k36i4bgfdrjdwj7npy3r3h5d-python3-3.10.8/bin/python3
sourcehut.python.out 0 s /nix/store/lbn7f0d2k36i4bgfdrjdwj7npy3r3h5d-python3-3.10.8/bin/python3-config
sourcehut.python.out 15,616 x /nix/store/lbn7f0d2k36i4bgfdrjdwj7npy3r3h5d-python3-3.10.8/bin/python3.10
sourcehut.python.out 3,447 x /nix/store/lbn7f0d2k36i4bgfdrjdwj7npy3r3h5d-python3-3.10.8/bin/python3.10-config
python39Full.out 0 s /nix/store/ckxlmknrfn6c55jwnw86ha9440w4a9ff-python3-3.9.15/bin/python3
python39Full.out 0 s /nix/store/ckxlmknrfn6c55jwnw86ha9440w4a9ff-python3-3.9.15/bin/python3-config
python39Full.out 15,616 x /nix/store/ckxlmknrfn6c55jwnw86ha9440w4a9ff-python3-3.9.15/bin/python3.9
python39Full.out 3,444 x /nix/store/ckxlmknrfn6c55jwnw86ha9440w4a9ff-python3-3.9.15/bin/python3.9-config
python39.out 0 s /nix/store/hm6bqikghylrwgvqd42lgghjdq9p3hac-python3-3.9.15/bin/python3
python39.out 0 s /nix/store/hm6bqikghylrwgvqd42lgghjdq9p3hac-python3-3.9.15/bin/python3-config
python39.out 15,616 x /nix/store/hm6bqikghylrwgvqd42lgghjdq9p3hac-python3-3.9.15/bin/python3.9
python39.out 3,444 x /nix/store/hm6bqikghylrwgvqd42lgghjdq9p3hac-python3-3.9.15/bin/python3.9-config
python37Full.out 0 s /nix/store/ys4my3x7wwb6r6mwfkyk6q9pay2jm3dz-python3-3.7.16/bin/python3
python37Full.out 0 s /nix/store/ys4my3x7wwb6r6mwfkyk6q9pay2jm3dz-python3-3.7.16/bin/python3-config
python37Full.out 15,616 x /nix/store/ys4my3x7wwb6r6mwfkyk6q9pay2jm3dz-python3-3.7.16/bin/python3.7
python37Full.out 0 s /nix/store/ys4my3x7wwb6r6mwfkyk6q9pay2jm3dz-python3-3.7.16/bin/python3.7-config
python37Full.out 15,616 x /nix/store/ys4my3x7wwb6r6mwfkyk6q9pay2jm3dz-python3-3.7.16/bin/python3.7m
python37Full.out 3,210 x /nix/store/ys4my3x7wwb6r6mwfkyk6q9pay2jm3dz-python3-3.7.16/bin/python3.7m-config
ihaskell.out 294 x /nix/store/yj8p9gd2irrh0z16d3b0ljv4vps920h7-ihaskell-with-packages/bin/python3
ihaskell.out 301 x /nix/store/yj8p9gd2irrh0z16d3b0ljv4vps920h7-ihaskell-with-packages/bin/python3-config
ihaskell.out 297 x /nix/store/yj8p9gd2irrh0z16d3b0ljv4vps920h7-ihaskell-with-packages/bin/python3.10
ihaskell.out 304 x /nix/store/yj8p9gd2irrh0z16d3b0ljv4vps920h7-ihaskell-with-packages/bin/python3.10-config
google-cloud-sdk.out 20,744 x /nix/store/7dw9fdkqs25fiwzq3r2z1y21gc97c8wd-google-cloud-sdk-408.0.1/google-cloud-sdk/platform/bundledpythonunix/bin/python3
google-cloud-sdk.out 3,254 x /nix/store/7dw9fdkqs25fiwzq3r2z1y21gc97c8wd-google-cloud-sdk-408.0.1/google-cloud-sdk/platform/bundledpythonunix/bin/python3-config
google-cloud-sdk.out 20,744 x /nix/store/7dw9fdkqs25fiwzq3r2z1y21gc97c8wd-google-cloud-sdk-408.0.1/google-cloud-sdk/platform/bundledpythonunix/bin/python3.9
google-cloud-sdk.out 3,254 x /nix/store/7dw9fdkqs25fiwzq3r2z1y21gc97c8wd-google-cloud-sdk-408.0.1/google-cloud-sdk/platform/bundledpythonunix/bin/python3.9-config
google-cloud-sdk-gce.out 20,744 x /nix/store/b96rpkxpw920sbbswz1xrrrpjdb1f30c-google-cloud-sdk-408.0.1/google-cloud-sdk/platform/bundledpythonunix/bin/python3
google-cloud-sdk-gce.out 3,254 x /nix/store/b96rpkxpw920sbbswz1xrrrpjdb1f30c-google-cloud-sdk-408.0.1/google-cloud-sdk/platform/bundledpythonunix/bin/python3-config
google-cloud-sdk-gce.out 20,744 x /nix/store/b96rpkxpw920sbbswz1xrrrpjdb1f30c-google-cloud-sdk-408.0.1/google-cloud-sdk/platform/bundledpythonunix/bin/python3.9
google-cloud-sdk-gce.out 3,254 x