I tested whether the dependents (the output from guix refresh -l python-evdev) still build and they do:

/gnu/store/8dm8832apgqb1skzpl3zfrziiwr5igc0-xkeysnail-0.4.0

/gnu/store/30hbgxjdlxrpydkvgs4ykbapvp6a651v-wacomtablet-3.2.0

/gnu/store/ldzinvj1nlm1ndb7wrkgcx76nnck1ncv-gnome-42.4

/gnu/store/f4flr9m1cbkj657pyh6pdvr3038qrmlw-gnome-terminal-3.44.1

/gnu/store/s7fmlfc6br83cf27zfn2vc5pxqahz12m-arc-theme-20221218

/gnu/store/b7yvyfs5haz0s9chgirss18hab9akrwr-gnome-shell-extension-gsconnect-50

/gnu/store/n37ik2mdqb4sfghqj4flv0ih3ihwhq1c-numix-gtk-theme-2.6.7

/gnu/store/w9cyyca4h5b1mva65pn57bxbzv7sssd7-gpaste-42.2

/gnu/store/qagpac5ci83xs280sx0ffvbdczbrxssw-show-me-the-key-1.8.0

/gnu/store/fdxjd1njilqnyz48caz4w6w34q5sz7sq-velox-0-1.fcc0412

/gnu/store/njvvbi2n13b560yyxq93gbys19h9xfl9-synthpod-0.1.6507

/gnu/store/d4004xqy9wrjr98rjjhyspl0z1hh26m5-touchegg-2.0.14

/gnu/store/3wcvsm3lyxsx74p22b1b54kcw02bl8gz-kodi-wayland-19.5

/gnu/store/45zzqfjv7myqsxf17pg72kcjj7rgp08d-plasma-phone-components-5.23.4

/gnu/store/6nb15cf70pbifd6jz3yp6jxdn9sf09m8-plasma-5.27.7

/gnu/store/6hz5zrhiyg3w3yw43bb9z7b3hbg91rjr-plasma-mobile-5.24.3

/gnu/store/fcb4h9rzvaxiawwvnf6vq95xyxkvjc66-plasma-bigscreen-5.27.7

/gnu/store/3gwqbwmbhhmyksdja572wkds4v851mfl-piper-0.7