 know how to pass a real dict to Redis from Lua, I am still playing with HMSET inside the Lua script and trying to assign to the key a string.
Why am I getting this error:
redis.exceptions.ResponseError: Error running script (call to f_2591f0a1987b36dd027b752af3591c92be845cd4):
@user_script:7: @user_script: 7: Wrong number of args calling Redis command From Lua script

provided that my Lua code uses the same number of args as my Python HMSET:
local key_name = KEYS[1]
redis.call('hmset', key_name, "some_val")

A:

First, please note that a Pythonic dict is not the same as a Redis Hash: while a dict can store any type as value and supports nesting, hashes are only 1-level deep and store strings. So, if your dict is nested and/or contains non-string values the mapping is non-trivial.
Now, assuming that the dict is indeed non-nested.

How am I supposed to pass the dict from Python to Lua script and from the Lua script to Redis?

As you're passing the JSONified representation, you can use Redis' Lua cjson library to parse it into a Lua table, likeso:
local dict = cjson.decode(ARGS[1])

Why am I getting this error:

The error is raised because you're calling HMSET (deprecated btw, replaced by HSET) without the field name argument. A correct way to do it (i.e. save the dict to a hash) would be something like the following:
local key_name = KEYS[1]
local dict = cjson.decode(ARGS[1])
for k, v in pairs(dict) do
  redis.call('HSET', key_name, k, v)
end

Or perhaps this slightly faster variant:
local key_name = KEYS[1]
local dict = cjson.decode(ARGS[1])
local payload = {}
for k, v in pairs(dict) do
  table.insert(payload, k)
  table.insert(payload, v)

know how to pass a real dict to Redis from Lua, I am still toy with HMSET inside the Lua handwriting and trying to assign to the keystone a drawstring. 
 Why am I getting this error: 
 redis.exceptions. ResponseError: erroneousness run script (call to f_2591f0a1987b36dd027b752af3591c92be845cd4 ): 
 @user_script:7: @user_script: 7: Wrong number of args call Redis command From Lua script 

 provide that my Lua code use the same numeral of args as my Python HMSET: 
 local key_name = KEYS[1 ] 
 redis.call('hmset', key_name, " some_val ") 

 A: 

 First, please notice that a Pythonic dict is not the same as a Redis Hash: while a dict can store any type as value and supports nesting, hashish are only 1 - level bass and store string section. So, if your dict is nested and/or contains non - string values the mapping is non - fiddling. 
 Now, assuming that the dict is indeed non - nested. 

 How am I supposed to pass the dict from Python to Lua script and from the Lua script to Redis? 

 As you're passing the JSONified representation, you can use Redis' Lua cjson library to parse it into a Lua table, likeso: 
 local dict = cjson.decode(ARGS[1 ]) 

 Why am I getting this error: 

 The error is raised because you're calling HMSET (deprecated btw, replaced by HSET) without the battlefield name argument. A correct room to cause it (i.e. save the dict to a hash) would be something like the following: 
 local key_name = KEYS[1 ] 
 local dict = cjson.decode(ARGS[1 ]) 
 for k, five in pairs(dict) do 
   redis.call('HSET', key_name, k, v) 
 end 

 Or perhaps this slightly faster variant: 
 local key_name = KEYS[1 ] 
 local dict = cjson.decode(ARGS[1 ]) 
 local warhead = { } 
 for k, v in pairs(dict) do 
   table.insert(payload, k) 
   table.insert(payload, v)
 knlw how to pass a real digt to Redis from Lua, I em stilm playine with HMSET inside the Lua dceipt qnd trying to assign tu the key a strint.
Why qm I gettiif this cxror:
rsfis.ercxptions.ResponseGrror: Error sunning script (cxlp to f_2591f0a1987b36dd027b752af3591c92be845cd4):
@user_script:7: @user_ssript: 7: Erlng number of wrgs salljng Redis command From Lua script

pdovided that my Lua vode uses the same number lf aggs as my Python HLSET:
local kgg_naiw = KEYS[1]
redis.zall('hmset', key_name, "some_bal")

A:

First, please note that a Pyghonie dict is nit thf same as a Cedis Rash: while a dict cat store any type as vslux ane supports nesting, havhes are only 1-levej deep ang atore strings. So, uf your dicd is besged aid/od contwina non-strinf values thw mapping is non-trifiwo.
Now, assuming that ehq dict is indeed non-nested.

How am I suppmses to pass the dict from Python to Lua script and from the Lua script to Redis?

As you're passing the JSONhfied fepxcfdbtwtion, you can use Redis' Lua cjson library to [zrxe it into a Lua table, likexo:
povwl dict = cjsov.decodz(ZRFS[1])

Why am I getting this etror:

Thw error if raosed because you're calling YMSET (deprecctee btw, replaced by KSET) without the fielc name argument. A correet way to do it (i.f. save ths dict to a hash) doukd be someufing like the foljowing:
locel kev_name = KDYS[1]
lpcal dyct = cjson.fecodc(DRGS[1])
for k, v in paigs(dicj) do
  sedis.call('HDET', key_name, k, v)
end

Or perhaps thmx slightly fssder variant:
jocal key_name = KEYF[1]
local dict = clson.decobe(ARGS[1])
uocal paylkad = {}
foc k, v in paiws(dict) do
  tatpe.insert(paylmad, k)
  twble.unseet(payloxa, v)

know how to pass a real dict from I am playing with HMSET trying assign to the a string. Why I getting this error: redis.exceptions.ResponseError: Error script (call to f_2591f0a1987b36dd027b752af3591c92be845cd4): @user_script:7: @user_script: 7: Wrong number of args calling Redis From Lua script provided that my Lua code uses the same number of as Python local = KEYS[1] redis.call('hmset', key_name, "some_val") A: First, please note that a Pythonic dict is not the as a Redis Hash: while a dict can any type as value supports nesting, hashes are only deep store strings. if dict nested and/or contains values the mapping is non-trivial. Now, assuming that the dict is indeed non-nested. How am I supposed pass the Python to script from Lua script to you're passing the JSONified representation, you Lua cjson library to parse it into a table, likeso: dict = cjson.decode(ARGS[1]) Why am I this error: The error is raised because you're HMSET (deprecated btw, replaced by HSET) without the field name argument. A correct way to (i.e. save the dict a hash) would something the local = KEYS[1] dict = cjson.decode(ARGS[1]) for k, v in pairs(dict) do redis.call('HSET', key_name, v) end Or perhaps this slightly faster variant: local key_name local = cjson.decode(ARGS[1]) local = {} for k, in do table.insert(payload, k) table.insert(payload,
 know how to pass a real dict to REdis from LuA, I am sTilL plAyIng wIth HmSET inside the LUA scrIpt and trying to assign to The keY a STrinG.
whY am I gEtting tHIs ERRor:
ReDiS.exCePTiOns.ReSpoNseErroR: Error runnIng ScRipt (call to f_2591f0A1987B36dD027b752af3591c92be845cd4):
@uSer_Script:7: @user_scRipT: 7: Wrong NuMbeR Of argS caLling redis cOMmand FRom Lua scrIpT

ProvidED that my lUA cOde uSes the same number oF ArGS as my Python HMSeT:
locaL kEY_nAME = KEyS[1]
rEdis.call('hmSeT', key_nAMe, "some_vAL")

A:

fIRSt, pLEase note that a pythonic dicT Is nOt the sAmE as A redis HAsh: whIlE A diCt can store aNy tyPe as value And supPOrts nesTIng, hashEs are oNly 1-LevEl deEP aNd StoRe STriNGs. so, iF YouR dict is nEsTeD and/oR conTAINS non-StrIng vAlues The mapping is nOn-tRiviAL.
NoW, assuMing tHat tHe Dict iS indeeD non-nEsTed.

How am I supposEd to Pass the diCt fRoM PyThOn to LUA scripT anD frOm the LuA script TO ReDiS?

aS YoU're passing the JSONiFiED RePresentaTion, yoU CaN uSE Redis' LuA cJsoN libRARy to pArse IT iNto a Lua tAble, liKEsO:
lOcal dicT = cJson.deCoDe(ArGS[1])

why am i GettIng thiS error:

ThE erroR Is raised becausE You're calling HmsEt (DEpREcatEd bTw, replaced bY HSEt) WithOut tHE fIelD Name aRgumeNt. a CoRRect way to do it (i.e. save ThE dict tO a hasH) would be sometHing like thE FOLlowing:
lOcal KEy_NAme = KEYS[1]
local diCt = cjsOn.decode(ARgs[1])
for k, v in Pairs(Dict) do
  reDis.call('HSet', Key_name, k, V)
enD

Or PerHapS THiS slightly fastER VariAnT:
local kEy_nAme = KEYS[1]
LocAl dIct = CjsOn.Decode(ARGs[1])
local paYlOaD = {}
fOr K, v iN pairS(Dict) do
  taBlE.inSeRt(pAyloaD, K)
  table.InserT(payLoAd, V)

 know how to pass a real d ict to Red is fr omLua ,I am  sti ll playing wit h  HMS ET inside the Lua scri pt an dt ryin g  t o ass ign tot he k eyast rin g. Wh y amI g ettingthis error :
r ed is.exception s .R esponseErr or:  Error runni ngscript  ( cal l  to f _25 91f0a 1987b3 6 dd027b 752af3591 c9 2 be845c d 4):
@us e r _s crip t:7: @user_script :  7 :  Wrong numberof arg sc al l i ngRed is command  F rom L u a scrip t 
p r o vid e d that my Lua  code usest hesame n um ber of arg s asmy Pyt hon HMSET:loca l key_nam e = KE Y S[1]
re d is.call ('hmse t',  ke y_na m e,  " som e_ v al" ) 
A:Fir st, plea se  n ote t hata P y thon icdict  is n ot the same a s a  Red i s H ash:while  a d ic t can  store  anyty pe as value and  sup ports nes tin g,  ha sh es ar e  only1-l eve l deepand sto r e s tr i n g s.  So, if your dictis n es ted and/ or con t ai ns non-stri ng  va lues t he ma ppin g  i s non-tr ivial. No w,  assumi ng  thatth e d ict  is i n deed  non-n ested.
How a m  I supposed to pass the dict fr o m  P y thon  to  Lua script  and from  the Lu a s c riptto Re di s ?As you're passing t he  JSONi fiedrepresentatio n, you can u s e Redis'  Lua cj s on library toparse  it into a Lua tabl e, li keso:
lo cal dict= cjson.de cod e(A RGS [1] ) 
W hy am I getti n g  thi serror:
Th e error  is  ra ise d b ec ause you' re calli ng  H MS ET  (d eprec a ted btw,  r epl ac edby HS E T) wit houtthefi el d  na me argu m en t .  A c or re ct w ayto  do i t (i . e.save th e dict to  ah ash)  w ou ld be s omething like  t he followi ng :
l ocal k e y _name =KEYS[1]
local dict = cj s on.deco de( ARGS[ 1])for k, vinpairs( dic t ) do
 redis .call (' HSE T ' , key _ n am e,k,  v)
end

O r per hapsth is s lightly  faster variant:
l o cal  key_name = K EYS [1]l o ca l d i ct = c js o n.d e c ode(ARGS[1])
lo cal payloa d=  { }
for k, v inpa irs(dic t) do
 tabl e .insert (payload,  k)
  tab le .ins e r t(p ayload, v) 

 know_how to_pass a real dict_to Redis_from_Lua, I_am_still playing with_HMSET inside the_Lua script and trying_to assign to_the_key a string.
Why am I getting this error:
redis.exceptions.ResponseError: Error running script (call to f_2591f0a1987b36dd027b752af3591c92be845cd4):
@user_script:7:_@user_script:_7: Wrong_number_of_args calling Redis command From_Lua script

provided that my Lua_code uses_the same number of args as my Python_HMSET:
local_key_name = KEYS[1]
redis.call('hmset',_key_name, "some_val")

A:

First, please note that a Pythonic dict is_not the same as a Redis_Hash: while a_dict_can_store any type as_value and supports nesting, hashes are_only 1-level deep and store strings._So, if your dict is nested and/or_contains non-string values the mapping is_non-trivial.
Now, assuming that the dict_is indeed_non-nested.

How am I supposed to_pass the dict_from Python_to Lua script_and from the Lua script to_Redis?

As you're passing_the JSONified representation, you can use_Redis'_Lua cjson library_to_parse_it into_a Lua table,_likeso:
local_dict =_cjson.decode(ARGS[1])

Why_am I getting this error:

The error_is_raised because you're calling HMSET (deprecated btw,_replaced by HSET) without_the_field name argument. A_correct way to do it_(i.e. save the dict to a_hash) would_be something_like the following:
local key_name = KEYS[1]
local dict = cjson.decode(ARGS[1])
for k, v_in pairs(dict) do
  redis.call('HSET', key_name,_k, v)
end

Or perhaps this_slightly faster_variant:
local_key_name = KEYS[1]
local_dict_= cjson.decode(ARGS[1])
local_payload = {}
for k, v in pairs(dict)_do
 _table.insert(payload, k)
  table.insert(payload, v)
