python - How do I extract a single variable from a file? -


i'm trying extract single variable data tell me temperature , height radar data , i'm trying run terminal in linux, keeps giving me error message saying "no such file or directory." here code:

ls datadata cd desktop python datadata.py 

here contents of file:

<xarray.dataset> dimensions:               (time: 6, bottom_top: 99, bottom_top_stag: 100, soil_layers_stag: 5, south_north: 128, south_north_stag: 129, west_east: 128, west_east_stag: 129) coordinates: xlat                 (time, south_north, west_east) float32 18.0 18.0 ... xlong                (time, south_north, west_east) float32 -62.0 -62.0 ... xlat_u               (time, south_north, west_east_stag) float32 0.0 0.0 ... xlong_u              (time, south_north, west_east_stag) float32 0.0 0.0 ... xlat_v               (time, south_north_stag, west_east) float32 0.0 0.0 ... xlong_v              (time, south_north_stag, west_east) float32 0.0 0.0 ...  time                 (time) int64 0 1 2 3 4 5  bottom_top           (bottom_top) int64 0 1 2 3 4 5 6 7 8 9 10 11 12 13 ...  bottom_top_stag      (bottom_top_stag) int64 0 1 2 3 4 5 6 7 8 9 10 11 ...  soil_layers_stag     (soil_layers_stag) int64 0 1 2 3 4  south_north          (south_north) int64 0 1 2 3 4 5 6 7 8 9 10 11 12 13 ...  south_north_stag     (south_north_stag) int64 0 1 2 3 4 5 6 7 8 9 10 11 ...  west_east            (west_east) int64 0 1 2 3 4 5 6 7 8 9 10 11 12 13 ...  west_east_stag       (west_east_stag) int64 0 1 2 3 4 5 6 7 8 9 10 11 12 ...  data variables: times                (time) |s19 b'2004-12-16_02:00:00' ... lu_index             (time, south_north, west_east) float32 0.0 0.0     0.0 ... znu                  (time, bottom_top) float32 0.994949 0.984848 ... znw                  (time, bottom_top_stag) float32 1.0 0.989899 ... zs                   (time, soil_layers_stag) float32 0.0 0.0 0.0 0.0 ... dzs                  (time, soil_layers_stag) float32 0.0 0.0 0.0 0.0 ... var_sso              (time, south_north, west_east) float32 0.0 0.0 0.0 ... lap_hgt              (time, south_north, west_east) float32 0.0 0.0 0.0 ... u                    (time, bottom_top, south_north, west_east_stag)   float32 -8.0977 ... v                    (time, bottom_top, south_north_stag, west_east) float32 -4.92184 ... w                    (time, bottom_top_stag, south_north, west_east) float32 -0.0 ... ph                   (time, bottom_top_stag, south_north, west_east) float32 0.0 ... phb                  (time, bottom_top_stag, south_north, west_east) float32 0.0 ... t                    (time, bottom_top, south_north, west_east) float32 -2.18884 ... hfx_force            (time) float32 0.0 0.0 0.0 0.0 0.0 0.0 lh_force             (time) float32 0.0 0.0 0.0 0.0 0.0 0.0 tsk_force            (time) float32 0.0 0.0 0.0 0.0 0.0 0.0 hfx_force_tend       (time) float32 0.0 0.0 0.0 0.0 0.0 0.0 lh_force_tend        (time) float32 0.0 0.0 0.0 0.0 0.0 0.0 tsk_force_tend       (time) float32 0.0 0.0 0.0 0.0 0.0 0.0 mu                   (time, south_north, west_east) float32 -437.29 ... mub                  (time, south_north, west_east) float32 38601.9 ... nest_pos             (time, south_north, west_east) float32 0.0 0.0 0.0 ... tke                  (time, bottom_top, south_north, west_east) float32 0.0961436 ... p                    (time, bottom_top, south_north, west_east) float32 88.3828 ... pb                   (time, bottom_top, south_north, west_east) float32 101345.0 ... fnm                  (time, bottom_top) float32 0.0 0.5 0.500001 ... fnp                  (time, bottom_top) float32 0.0 0.5 0.499999 ... rdnw                 (time, bottom_top) float32 -98.9999 -98.9999 ... rdn                  (time, bottom_top) float32 0.0 -98.9999 -99.0002 ... dnw                  (time, bottom_top) float32 -0.010101 -0.010101 ... dn                   (time, bottom_top) float32 0.0 -0.010101 -0.010101 ... cfn                  (time) float32 1.5 1.5 1.5 1.5 1.5 1.5 cfn1                 (time) float32 -0.5 -0.5 -0.5 -0.5 -0.5 -0.5 p_hyd                (time, bottom_top, south_north, west_east) float32 101339.0 ... q2                   (time, south_north, west_east) float32 0.0 0.0 0.0 ... t2                   (time, south_north, west_east) float32 0.0 0.0 0.0 ... th2                  (time, south_north, west_east) float32 0.0 0.0 0.0 ... psfc                 (time, south_north, west_east) float32 101535.0 ... u10                  (time, south_north, west_east) float32 0.0 0.0 0.0 ... v10                  (time, south_north, west_east) float32 0.0 0.0 0.0 ... rdx                  (time) float32 0.01 0.01 0.01 0.01 0.01 0.01 rdy                  (time) float32 0.01 0.01 0.01 0.01 0.01 0.01 resm                 (time) float32 0.0 0.0 0.0 0.0 0.0 0.0 zetatop              (time) float32 0.0 0.0 0.0 0.0 0.0 0.0 cf1                  (time) float32 2.0 2.0 2.0 2.0 2.0 2.0 cf2                  (time) float32 -1.5 -1.5 -1.5 -1.5 -1.5 -1.5 cf3                  (time) float32 0.500002 0.500002 0.500002 0.500002 ... itimestep            (time) int32 14400 15600 16800 18000 19200 20400 xtime                (time) float32 120.0 130.0 140.0 150.0 160.0 170.0 qvapor               (time, bottom_top, south_north, west_east) float32 0.0167233 ... qcloud               (time, bottom_top, south_north, west_east) float32 0.0 ... qrain                (time, bottom_top, south_north, west_east) float32 1.40266e-12 ... qice                 (time, bottom_top, south_north, west_east) float32 0.0 ... qsnow                (time, bottom_top, south_north, west_east) float32 0.0 ... qgraup               (time, bottom_top, south_north, west_east) float32 0.0 ... qhail                (time, bottom_top, south_north, west_east) float32 0.0 ... qnwfa2d              (time, south_north, west_east) float32 0.0 0.0 0.0 ... qnccn                (time, bottom_top, south_north, west_east) float32 0.0 ... qncloud              (time, bottom_top, south_north, west_east) float32 0.0 ... qnrain               (time, bottom_top, south_north, west_east) float32 0.00523219 ... qnice                (time, bottom_top, south_north, west_east) float32 0.0 ... qnsnow               (time, bottom_top, south_north, west_east) float32 0.0 ... qngraupel            (time, bottom_top, south_north, west_east) float32 0.0 ... qnhail               (time, bottom_top, south_north, west_east) float32 0.0 ... qvgraupel            (time, bottom_top, south_north, west_east) float32 0.0 ... shdmax               (time, south_north, west_east) float32 0.0 0.0 0.0 ... shdmin               (time, south_north, west_east) float32 0.0 0.0 0.0 ... snoalb               (time, south_north, west_east) float32 0.0 0.0 0.0 ... tslb                 (time, soil_layers_stag, south_north, west_east) float32 0.0 ... smois                (time, soil_layers_stag, south_north, west_east) float32 0.0 ... sh2o                 (time, soil_layers_stag, south_north, west_east) float32 0.0 ... smcrel               (time, soil_layers_stag, south_north, west_east) float32 0.0 ... seaice               (time, south_north, west_east) float32 0.0 0.0 0.0 ... xicem                (time, south_north, west_east) float32 0.0 0.0 0.0 ... sfroff               (time, south_north, west_east) float32 0.0 0.0 0.0 ... udroff               (time, south_north, west_east) float32 0.0 0.0 0.0 ... ivgtyp               (time, south_north, west_east) int32 0 0 0 0 0 0 0 ... isltyp               (time, south_north, west_east) int32 0 0 0 0 0 0 0 ... vegfra               (time, south_north, west_east) float32 0.0 0.0 0.0 ... grdflx               (time, south_north, west_east) float32 0.0 0.0 0.0 ... acgrdflx             (time, south_north, west_east) float32 0.0 0.0 0.0 ... acsnom               (time, south_north, west_east) float32 0.0 0.0 0.0 ... snow                 (time, south_north, west_east) float32 0.0 0.0 0.0 ... snowh                (time, south_north, west_east) float32 0.0 0.0 0.0 ... canwat               (time, south_north, west_east) float32 0.0 0.0 0.0 ... sstsk                (time, south_north, west_east) float32 0.0 0.0 0.0 ... coszen               (time, south_north, west_east) float32 -0.871705 ... lai                  (time, south_north, west_east) float32 0.0 0.0 0.0 ... var                  (time, south_north, west_east) float32 0.0 0.0 0.0 ... mapfac_m             (time, south_north, west_east) float32 0.0 0.0 0.0 ... mapfac_u             (time, south_north, west_east_stag) float32 0.0 0.0 ... mapfac_v             (time, south_north_stag, west_east) float32 0.0 0.0 ... mapfac_mx            (time, south_north, west_east) float32 1.0 1.0 1.0 ... mapfac_my            (time, south_north, west_east) float32 1.0 1.0 1.0 ... mapfac_ux            (time, south_north, west_east_stag) float32 1.0 1.0 ... mapfac_uy            (time, south_north, west_east_stag) float32 1.0 1.0 ... mapfac_vx            (time, south_north_stag, west_east) float32 1.0 1.0 ... mf_vx_inv            (time, south_north_stag, west_east) float32 1.0 1.0 ... mapfac_vy            (time, south_north_stag, west_east) float32 1.0 1.0 ... f                    (time, south_north, west_east) float32 4.49e-05 ... e                    (time, south_north, west_east) float32 0.0 0.0 0.0 ... sinalpha             (time, south_north, west_east) float32 0.0 0.0 0.0 ... cosalpha             (time, south_north, west_east) float32 1.0 1.0 1.0 ... hgt                  (time, south_north, west_east) float32 0.0 0.0 0.0 ...  tsk                  (time, south_north, west_east) float32 299.8 299.8 ...  p_top                (time) float32 62938.1 62938.1 62938.1 62938.1 ...  t00                  (time) float32 0.0 0.0 0.0 0.0 0.0 0.0  p00                  (time) float32 0.0 0.0 0.0 0.0 0.0 0.0  tlp                  (time) float32 0.0 0.0 0.0 0.0 0.0 0.0  tiso                 (time) float32 0.0 0.0 0.0 0.0 0.0 0.0  max_mstfx            (time) float32 0.0 0.0 0.0 0.0 0.0 0.0  max_mstfy            (time) float32 0.0 0.0 0.0 0.0 0.0 0.0  rainc                (time, south_north, west_east) float32 0.0 0.0 0.0 ... rainsh               (time, south_north, west_east) float32 0.0 0.0 0.0 ... rainnc               (time, south_north, west_east) float32 0.120844 ... snownc               (time, south_north, west_east) float32 0.0 0.0 0.0 ... graupelnc            (time, south_north, west_east) float32 0.0 0.0 0.0 ... hailnc               (time, south_north, west_east) float32 0.0 0.0 0.0 ... refl_10cm            (time, bottom_top, south_north, west_east) float32 0.0 ... cldfra               (time, bottom_top, south_north, west_east) float32 0.0 ... swdown               (time, south_north, west_east) float32 0.0 0.0 0.0 ... glw                  (time, south_north, west_east) float32 0.0 0.0 0.0 ... swnorm               (time, south_north, west_east) float32 0.0 0.0 0.0 ... olr                  (time, south_north, west_east) float32 0.0 0.0 0.0 ... albedo               (time, south_north, west_east) float32 0.08 0.08 ... clat                 (time, south_north, west_east) float32 0.0 0.0 0.0 ... albbck               (time, south_north, west_east) float32 0.08 0.08 ... emiss                (time, south_north, west_east) float32 0.98 0.98 ... noahres              (time, south_north, west_east) float32 0.0 0.0 0.0 ... tmn                  (time, south_north, west_east) float32 298.95 ... xland                (time, south_north, west_east) float32 2.0 2.0 2.0 ... ust                  (time, south_north, west_east) float32 0.335208 ... pblh                 (time, south_north, west_east) float32 0.0 0.0 0.0 ... hfx                  (time, south_north, west_east) float32 8.70271 ... qfx                  (time, south_north, west_east) float32 6.01207e-05 ... lh                   (time, south_north, west_east) float32 150.302 ... achfx                (time, south_north, west_east) float32 0.0 0.0 0.0 ... aclhf                (time, south_north, west_east) float32 0.0 0.0 0.0 ... snowc                (time, south_north, west_east) float32 0.0 0.0 0.0 ... sr                   (time, south_north, west_east) float32 0.0 0.0 0.0 ... save_topo_from_real  (time) int32 0 0 0 0 0 0 afwa_cloud_ceil      (time, south_north, west_east) float32 0.0 0.0 0.0 ... afwa_cape            (time, south_north, west_east) float32 0.0 0.0 0.0 ... afwa_zlfc            (time, south_north, west_east) float32 0.0 0.0 0.0 ... afwa_plfc            (time, south_north, west_east) float32 0.0 0.0 0.0 ... midrh_min            (time, south_north, west_east) float32 0.0 0.0 0.0 ... afwa_hail            (time, south_north, west_east) float32 0.0 0.0 0.0 ... afwa_llws            (time, south_north, west_east) float32 0.0 0.0 0.0 ... afwa_tornado         (time, south_north, west_east) float32 0.0 0.0 0.0 ... seed1                (time) int32 0 0 0 0 0 0 seed2                (time) int32 0 0 0 0 0 0 landmask             (time, south_north, west_east) float32 0.0 0.0 0.0 ... lakemask             (time, south_north, west_east) float32 0.0 0.0 0.0 ... sst                  (time, south_north, west_east) float32 299.8 299.8 ... sst_input            (time, south_north, west_east) float32 0.0 0.0 0.0 ... attributes: title:  output wrf v3.6 model start_date: 2004-12-16_02:00:00 simulation_start_date: 2004-12-16_00:00:00 west-east_grid_dimension: 129 south-north_grid_dimension: 129 bottom-top_grid_dimension: 100 dx: 100.0 dy: 100.0 stoch_force_opt: 0 gridtype: c diff_opt: 2 km_opt: 2 damp_opt: 0 dampcoef: 0.1 khdif: 500.0 kvdif: 500.0 mp_physics: 18 ra_lw_physics: 0 ra_sw_physics: 0 sf_sfclay_physics: 1 sf_surface_physics: 0 bl_pbl_physics: 0 cu_physics: 0 sf_lake_physics: 0 surface_input_source: 1 sst_update: 0 grid_fdda: 0 gfdda_interval_m: 0 gfdda_end_h: 0 grid_sfdda: 0 sgfdda_interval_m: 0 sgfdda_end_h: 0 hypsometric_opt: 2 sf_urban_physics: 0 shcu_physics: 0 mfshconv: 0 feedback: 0 smooth_option: 1 swrad_scat: 1.0 w_damping: 0 dt: 0.5 radt: 0.0 bldt: 0.0 cudt: 0.0 aer_opt: 0 swint_opt: 0 aer_type: 1 aer_aod550_opt: 1 aer_angexp_opt: 1 aer_ssa_opt: 1 aer_asy_opt: 1 aer_aod550_val: 0.12 aer_angexp_val: 1.3 aer_ssa_val: 1.4013e-45 aer_asy_val: 1.4013e-45 moist_adv_opt: 2 scalar_adv_opt: 2 tke_adv_opt: 2 diff_6th_opt: 0 diff_6th_factor: 0.12 obs_nudge_opt: 0 bucket_mm: -1.0 bucket_j: -1.0 prec_acc_dt: 0.0 sf_ocean_physics: 0 isftcflx: 0 ishallow: 0 isfflx: 1 icloud: 1 icloud_cu: 0 tracer_pblmix: 1 scalar_pblmix: 0 grav_settling: 0 dfi_opt: 0 west-east_patch_start_unstag: 1 west-east_patch_end_unstag: 128 west-east_patch_start_stag: 1 west-east_patch_end_stag: 129 south-north_patch_start_unstag: 1 south-north_patch_end_unstag: 128 south-north_patch_start_stag: 1 south-north_patch_end_stag: 129 bottom-top_patch_start_unstag: 1 bottom-top_patch_end_unstag: 99 bottom-top_patch_start_stag: 1 bottom-top_patch_end_stag: 100 grid_id: 1 parent_id: 0 i_parent_start: 1 j_parent_start: 1 parent_grid_ratio: 1 cen_lat: 0.0 cen_lon: 0.0 truelat1: 0.0 truelat2: 0.0 moad_cen_lat: 0.0 stand_lon: 0.0 pole_lat: 0.0 pole_lon: 0.0 gmt: 0.0 julyr: 0 julday: 1 map_proj: 0 map_proj_char: cartesian mminlu:  num_land_cat: 24 iswater: 0 islake: 0 isice: 0 isurban: 0 isoilwater: 0 

this when gives me error message [errno 2] no such file or directory. i'm trying use code retrieve variable file, below:

python datadata.py -o experiment_tas.nc --time-units="days since 1949-12-01_00:00:00" -v t2 wrfout1.nc wrfout2.nc ... wrfoutn.nc 

how terminal retrieve variable , right code use variable?


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