Allow to specify from-version for tclcheck_allota.py. Updated README.

tclcheck_allota.py

@@ -3,6 +3,7 @@
 
 # pylint: disable=C0111,C0326
 
+import sys
 import tcllib
 from requests.exceptions import RequestException, Timeout
 
@@ -14,7 +15,13 @@ fc.serid = "3531510"
 fc.mode = fc.MODE_OTA
 fc.cltp  = 10
 
-print("List of latest OTA firmware by PRD:".format(fc.fv))
+force_ver = False
+force_ver_text = ""
+if len(sys.argv) > 1:
+    force_ver = sys.argv[1]
+    force_ver_text = " from {}".format(force_ver)
+
+print("List of latest OTA firmware{} by PRD:".format(force_ver_text))
 
 with open("prds.txt", "r") as afile:
     prdx = afile.read()
@@ -22,16 +29,15 @@ with open("prds.txt", "r") as afile:
 
 while len(prds) > 0:
     prd, lastver, model = prds[0].split(" ", 2)
+    if force_ver != False:
+        lastver = force_ver
     try:
         fc.reset_session()
         fc.curef = prd
         fc.fv = lastver
         check_xml = fc.do_check()
         curef, fv, tv, fw_id, fileid, fn, fsize, fhash = fc.parse_check(check_xml)
-        txt_tv = tv
-        if fc.mode == fc.MODE_OTA:
-          txt_tv = "{} ⇨ {}".format(fv, tv)
-        print("{}: {} {} ({})".format(prd, txt_tv, fhash, model))
+        print("{}: {} ⇨ {} {} ({})".format(prd, fv, tv, fhash, model))
         prds.pop(0)
     except Timeout as e:
         print("{} failed. (Connection timed out.)".format(prd))